## Business Statistics and Probability

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Which statement is true?

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If the distribution has a kurtosis value which is equal to zero. The distribution is said to be

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Analyze the excel sheet formula and identify which that does not belong to the group

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Evaluate the formula and identify the correct expression

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There are 10 employees in a small business firm. From these employees, two of them have a salary of Php20,000; three of them receive Php25,000; four of them receive Php30,000; lastly the manager's salary is not given. Supposing that the average salary of the 10 employees is worth Php29,000, what is the range amount of their salaries?

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16 BSBA students took a quiz in Business Statistics, five of them got a score of 5; five got a score of 10 ; five got a score of 15 and the other one was unknown. If the mean score of 16 students is 10, what is the modal score?

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Analyze the excel sheet formula and identify which one does not belong to the group

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Which of the following is incorrectly evaluated

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If the probability that x = 6 is 25%, what is the probability that x will not be equal to 6?

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If the probability that x ≥ 6 is 10%. What is the probability that x<6?

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Ten people took an employment exam, the following are their scores from a 50-item test

10,20,30,25,35,40,20,34,33,38

What is the population standard deviation?

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Identify the probability distribution being described by the statement below

What is the probability of having exactly 7 tails before 8 heads?

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Statement 1. Factorial notation is the result of multiplying a sequence of descending numbers.

Statement 2. Combination refers to the arrangement of objects with reference to order.

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What can you infer from the following data, 10, 15, 10, 20, 15, 25, 10.

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You are in charged of the repacking of goods. There are 2 types of canned sardines, 3 types of rice and 2 types of noodles. How many combinations can you make if you are only allowed to pick one per product?

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What can you say about the distribution's skewness given the following data

Mean=20

Mode = 10

Median=15

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Imagine that you are the banker of the game "deal or no deal". Supposing that you are tasked to make an offer worth 30% lower than the mean of the remaining amounts contained in the unopened briefcases. There are only three briefcases left unopened, one chosen by the player and two with the deal or no deal ladies . The remaining amounts are Php1,000,000, Php700,000 and Php100,000. What amount will you offer to the player?

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The variance of the final grades of 50 students is equal to 16, what is the value of standard deviation?

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A normal deck of playing cards consists of 52 cards. If you will draw one card, what is the probability that you can get a black card?

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Analyze the excel sheet formula and identify which that does not belong to the group

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If the probability that x ≥ 10 is 65% and the probability that x=10 is 20%, what is the probability that x≠10?

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Which statement is false?

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Which of the following is a continuous random variable?

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If there are 20 students currently enrolled BSBA-MIS. In how many ways can elect a president and vice president?

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The average number of homes sold by the a realty company is 2 homes per day. What is the probability that greater than 3 homes will be sold tomorrow?

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If the probability that x ≤ 20 is 65% and the probability that x<20 is 20%, what is the probability that x≠20?

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This is the maximum value of the probability of rejecting the hypothesis when in fact it is true

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This type of statistical test is used when relationship of two or more variables are said to be "not equal to" or the problem has no condition.

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It is used when the relationship between two or more variables in the problem is believed to be greater than, lesser than, at most, at least, maximum and minimum

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A hypothesis that is intended for statistical test is generally stated in ________ form.

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What will be your decision if the absolute calculated value is greater than the tabular value?

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Null Hypothesis: There is no significant difference between the age and income level of employees under the entertainment industry.

Supposing that the researcher rejected the hypothesis when in fact it is true. The researcher committed a

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There are 52 cards in an ordinary deck of cards. If you will be drawing one card. What is the probability that it is a heart or a spade?

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Seller, A, B and C records their transaction under the accrual basis. They had a profit of Php 10,000, Php20,000 and Php15,000 respectively. Calculate the mean or average income of the 3 sellers after the following accounting adjustments.

Seller A received Php1,000 as payment for past recorded receivable

Seller B forgot to record electricity expense worth Php1,200

Seller C paid accrued expenses worth Php2,000

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Given the following data, 10, 15, 10, 20, 15, 25, 10. What is the median?

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The following are the stock prices of FPL Co. from October 9-15

7.70, 7.75, 7.80, 7.60, 7.50, 7.75, 7.75

What is the average stock price within the given week?

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The current foreign exchange rate is USD 1 = Php 45. Assuming that the probability that the rate will be 1 USD = Php 40 is 0.7, and the probability that it will be USD 1= Php 46 is 0.2, the probability that it will remain the same is 0.1. What is the expected foreign exchange rate rate? (Average)

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In an employment exam, 3 applicants got a score of 21-30 while 4 applicants got 31-40. Compute the mean of the grouped data.

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Occupation

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Taxable Income

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A researcher was assigned to obtain respondents from a certain municipality, he was tasked to determine the reaction of residents' of a certain municipality regarding the proposed increase in monthly pension of retired people. He was told to have 200 female and 300 male respondents between the age of 45 and 60. What is the sampling method used by the researcher?

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Identify the area where statistics is being described: Statistics is used in deciding whether to accept, reject or rework a certain product.

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Average Monthly Expense

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The main purpose of descriptive statistics is to:

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Using stratified random sampling, you need obtain 300 samples from a community consisting of 2,000 individuals belonging to different income brackets. 300 individuals belong to the high income earners; 1200 are average income earners; and 500 are low-income earners. How many samples will you obtain from the group of low-income earners?

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Years of experience

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Gross Sales per day

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Mr. P, a researcher of the National Internal Revenue, was tasked to make a research regarding open tax cases of businesses from the 18 regions of the country. He selected 3 provinces on each region. After that, he selected 3 municipalities from each province. From each of the municipalities, he draws 10 registered businesses systematically from their list. What is the sampling method used by Mr. P?

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Employment Status

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Age

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Brand Name

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Tell whether Descriptive or Inferential Statistics: The engineer calculates the average height of buildings in a city.

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Which statement is false?

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Tell whether Descriptive or Inferential Statistics: The production manager tests if the products are okay by getting samples from the total products manufactured. Later on, he concluded that the products are not okay and needs d to be repaired.

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Type of Business

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Which statement is false?

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Statement 1. Gosset formulated the t-test

Statement 2.Egon Pearson was the one who formulated the Pearson chi-square test

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Office Address

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Educationally speaking, Mr. P is a researcher who studies the economics of legal prostitution, He plans to conduct a survey study but because of the sensitive topic, he has no access and no idea regarding the population of study. He only know one respondent and that was Ms Cute, after the productive survey with her, Mr. P asked if she knows someone who is willing to cooperate with his research, Ms Cute then brings Mr. P to Miss Beautiful. After doing the same thing, Mr. P requested Ms Beautiful if she knows another respondent who is willing to cooperate, Ms Beautiful then brings him to Ms Chaka. What sampling method was used by Mr. P?

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Which statement is false?

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If sample size is 5,000, when margin of error is 1%, what is the size of the population?

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Find the margin of error used if sample size computed is 50 at and population is 100.

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Which method is the most time consuming?

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Which statement is false?

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This exists to guide business decisions by providing insight about competitors, products and customers. this statement describes the use of statistics in the field of

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Identify the area where statistics is being described: Statistics is applied in performance appraisal of employees.

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This is the science of good decision making in the face of uncertainty and is used in many disciplines such as financial analysis, econometrics, auditing, production and operations including services improvement, and marketing research.

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Which is not included in the group

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Which statement is false?

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Which of the following statements best describes descriptive statistics

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Which statement is false?

### Question 9

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Identify the area where statistics is being applied: Business entities usually use statistical modeling for predicting budgets and capital expenditures based on the past data of the entity and other relevant variables considered.