Lunch break: In a recent survey of 640 working Americans ages 25-34, the average weekly amount spent on lunch as $45.00 with standard deviation $2.77. The weekly amounts are approximately bell-shaped. Part: 0/3 Part 1 of 3 (a) Estimate the percentage of amounts that were less than $39.46. Round the answer to one decimal place. Approximately % of the amounts were less than $39.46. X

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Lunch break: In a recent survey of 640 working Americans ages 25-34, the average weekly amount spent on lunch as $45.00 with standard deviation $2.77.
The weekly amounts are approximately bell-shaped.
Part: 0 / 3
Part 1 of 3
(a) Estimate the percentage of amounts that were less than $39.46. Round the answer to one decimal place.
% of the amounts were less than $39.46.
Approximately
X
Ś
Transcribed Image Text:Lunch break: In a recent survey of 640 working Americans ages 25-34, the average weekly amount spent on lunch as $45.00 with standard deviation $2.77. The weekly amounts are approximately bell-shaped. Part: 0 / 3 Part 1 of 3 (a) Estimate the percentage of amounts that were less than $39.46. Round the answer to one decimal place. % of the amounts were less than $39.46. Approximately X Ś
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