serid=85668557&5cenario= 118unvoketype-et1&bookserver=18:0agenumber=v&.course d=svyeshnikova420618 displaycourseidesy (e) What is the percentile rank of an 18-ounce bag of Chips Ahoy! that contains 1475 chocolate chips? () What is the percentile rank of an 18-ounce bag of Chips Ahoy! that contains 1050 chocolate chips? 40. Wendy's Drive-Through Fast-food restaurants spend quite bit of time studying the amount of time cars spend in their drive throughs. Certainly, the faster the cars get through the drive- through, the more the opportunity for making money. QSR Magazine studied drive-through times for fast-food restaurants and found Wendy's in the drive-through of 138.5 seconds. Assuming drive-through times are normally distributed with a standard deviation of 29 seconds, answer the following. (a) What is the probability that a randomly selected car will get through Wendy's drive-through in less than 100 seconds? (b) What is the probability that a randomly selected car will spend more than 160 seconds in Wendy's drive-through? (c) What proportion of cars spend between 2 and 3 minutes in Wendy's drive-through? (d) Would it be unusual for a car to spend more than 3 minutes in Wendy's drive-through? Why? 41. Gestation Period The lengths of human pregnancies are approximately normally distributed, with mean 266 days and standard deviation o =16 days. viation lthe best time, with a mean time spent ator is ately imes of lected (a) What proportion of pregnancies lasts more than 270 days? (b) What proportion of pregnancies lasts less than 250 days? (c) What proportion of pregnancies lasts between 240 and 280 days? (d) What is the probability that a randomly selected pregnancy lasts more than 280 days? lected lected 8 days?
serid=85668557&5cenario= 118unvoketype-et1&bookserver=18:0agenumber=v&.course d=svyeshnikova420618 displaycourseidesy (e) What is the percentile rank of an 18-ounce bag of Chips Ahoy! that contains 1475 chocolate chips? () What is the percentile rank of an 18-ounce bag of Chips Ahoy! that contains 1050 chocolate chips? 40. Wendy's Drive-Through Fast-food restaurants spend quite bit of time studying the amount of time cars spend in their drive throughs. Certainly, the faster the cars get through the drive- through, the more the opportunity for making money. QSR Magazine studied drive-through times for fast-food restaurants and found Wendy's in the drive-through of 138.5 seconds. Assuming drive-through times are normally distributed with a standard deviation of 29 seconds, answer the following. (a) What is the probability that a randomly selected car will get through Wendy's drive-through in less than 100 seconds? (b) What is the probability that a randomly selected car will spend more than 160 seconds in Wendy's drive-through? (c) What proportion of cars spend between 2 and 3 minutes in Wendy's drive-through? (d) Would it be unusual for a car to spend more than 3 minutes in Wendy's drive-through? Why? 41. Gestation Period The lengths of human pregnancies are approximately normally distributed, with mean 266 days and standard deviation o =16 days. viation lthe best time, with a mean time spent ator is ately imes of lected (a) What proportion of pregnancies lasts more than 270 days? (b) What proportion of pregnancies lasts less than 250 days? (c) What proportion of pregnancies lasts between 240 and 280 days? (d) What is the probability that a randomly selected pregnancy lasts more than 280 days? lected lected 8 days?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 9PPS
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Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
Topic Video
Question
Number 40 A B C
Transcribed Image Text:serid=85668557&5cenario= 118unvoketype-et1&bookserver=18:0agenumber=v&.course d=svyeshnikova420618 displaycourseidesy
(e) What is the percentile rank of an 18-ounce bag of Chips
Ahoy! that contains 1475 chocolate chips?
() What is the percentile rank of an 18-ounce bag of Chips
Ahoy! that contains 1050 chocolate chips?
40. Wendy's Drive-Through Fast-food restaurants spend quite
bit of time studying the amount of time cars spend in their drive
throughs. Certainly, the faster the cars get through the drive-
through, the more the opportunity for making money. QSR
Magazine studied drive-through times for fast-food restaurants
and found Wendy's
in the drive-through of 138.5 seconds. Assuming drive-through
times are normally distributed with a standard deviation of
29 seconds, answer the following.
(a) What is the probability that a randomly selected car will get
through Wendy's drive-through in less than 100 seconds?
(b) What is the probability that a randomly selected car will spend
more than 160 seconds in Wendy's drive-through?
(c) What proportion of cars spend between 2 and 3 minutes in
Wendy's drive-through?
(d) Would it be unusual for a car to spend more than 3 minutes
in Wendy's drive-through? Why?
41. Gestation Period The lengths of human pregnancies are
approximately normally distributed, with mean 266 days
and standard deviation o =16 days.
viation
lthe best time, with a mean time spent
ator is
ately
imes of
lected
(a) What proportion of pregnancies lasts more than 270 days?
(b) What proportion of pregnancies lasts less than 250 days?
(c) What proportion of pregnancies lasts between 240 and
280 days?
(d) What is the probability that a randomly selected pregnancy
lasts more than 280 days?
lected
lected
8 days?
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