16 and less than 20 (i) Calculate the mean and standard deviation for the above data.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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4. The table below shows the length of time to brew coffee when Coffee Shop
X opened for three days.
Time (minutes)
0 and less than 4
4 and less than 8
Frequency
4
8 and less than 12
10
12 and less than 16
16 and less than 20
4.
(i)
Calculate the mean and standard deviation for the above data.
Construct a histogram to represent the above data.
Using the histogram, estimate the modal time spend to brew the
coffee for Coffee Shop X and comment on the value obtained.
Given that the mean and standard deviation of the length of time to
brew the coffee for Coffee Shop Z were 11 and 5.235 respectively.
Determine which Coffee Shop has a more consistent distribution.
(ii)
(ii)
(iv)
Transcribed Image Text:4. The table below shows the length of time to brew coffee when Coffee Shop X opened for three days. Time (minutes) 0 and less than 4 4 and less than 8 Frequency 4 8 and less than 12 10 12 and less than 16 16 and less than 20 4. (i) Calculate the mean and standard deviation for the above data. Construct a histogram to represent the above data. Using the histogram, estimate the modal time spend to brew the coffee for Coffee Shop X and comment on the value obtained. Given that the mean and standard deviation of the length of time to brew the coffee for Coffee Shop Z were 11 and 5.235 respectively. Determine which Coffee Shop has a more consistent distribution. (ii) (ii) (iv)
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