Answered: Question 3 a) The table below…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 10CYU

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Question 3

a) The table below represents the subject scores for 144 students.

Subject	Male (M)	Female (F)	Total
A: Business Ethics	4	14	18
B: Macroeconomics	17	41	58
C: Supply chain management	4	25	29
D: Clinical Psychology	28	11	39
Total	53	91	144

Calculate the following probabilities:

i) Prob (A)

ii) Prob (F)

iii) Prob (AIF)

iv) Prob (FIA)

b) The number of newspapers sold daily at all 7-eleven outlets nationwide is normally distributed with a mean of 350 and a standard deviation of 30.

i) Calculate the probability that less than 300 newspapers are sold in one day

ii) Determine the number of newspapers that the 7-eleven stores should stock every day such that the probability of running out on any particular day is 10%.

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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