Pandora, the owner of a food delivery app, knows from experience that the time needed to assemble a food delivery is normally distributed with a mean of 30 minutes and standard deviation of 5 minutes. A. Find the proportion of food deliveries that took less than 15 minutes to assemble. a. 0.98257 b. 0.0746 c. 0.1157 d. 0.00135 B. Find the proportion of food deliveries that took more than 35 minutes to assemble. a. 0.0243 b. 0.75923 c. 0.15866 d. 0.01743 C. Below how many minutes would you find the fastest 20% of food assembly times? (i.e., find k such that P(food assembly time

Pandora, the owner of a food delivery app, knows from experience that the time needed to assemble a food delivery is normally distributed with a mean of 30 minutes and standard deviation of 5 minutes. A. Find the proportion of food deliveries that took less than 15 minutes to assemble. a. 0.98257 b. 0.0746 c. 0.1157 d. 0.00135 B. Find the proportion of food deliveries that took more than 35 minutes to assemble. a. 0.0243 b. 0.75923 c. 0.15866 d. 0.01743 C. Below how many minutes would you find the fastest 20% of food assembly times? (i.e., find k such that P(food assembly time

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

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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STATISTICS AND PROBABILITY

MULTIPLE CHOICE

A. Find the proportion of food deliveries that took less than 15 minutes to assemble.

a. 0.98257

b. 0.0746

c. 0.1157

d. 0.00135

B. Find the proportion of food deliveries that took more than 35 minutes to assemble.

a. 0.0243

b. 0.75923

c. 0.15866

d. 0.01743

C. Below how many minutes would you find the fastest 20% of food assembly times? (i.e., find k such that P(food assembly time<k)=0.20

a. 24.5 minutes

b. 25.8 minutes

c. 20.3 minutes

d. 34.6 minutes

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