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Q1) Daily attendance of economics class follows normal distribution with mean of 26 students and standard deviation of four students.

a) Determine the probability that attendance will be fewer than 24 students. SW

b) Determine the interval of X values that would result in middle 70% of the number of students in attendance in any arbitrarily selected economics class. SW

Q2) Downhill Ski Resort in Colorado has accumulated information from records of past 30 winters regarding measurable snowfall. This information is as follows:

Snowfall (in)	Frequency
0-19	2
20-29	7
30-39	8
40-49	8
50+	5
Total	30

a) Find out the probability of each event in this frequency distribution.

b) Are all the events in this distribution mutually exclusive? Describe in detail.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9171030

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