Assume that when adults with smartphones are randomly selected, 52% use them in meetings or classes. If 7 adult smartphone users are randomly selected, find the probability that at least 2 of them use their smartphones in meetings or classes. The probability is. (Round to four decimal places as needed.)

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...
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Assume that when adults with smartphones are randomly selected, 52% use them in meetings or classes. If 7 adult smartphone users are randomly selected, find the
probability that at least 2 of them use their smartphones in meetings or classes.
The probability is
(Round to four decimal places as needed.)
Transcribed Image Text:Assume that when adults with smartphones are randomly selected, 52% use them in meetings or classes. If 7 adult smartphone users are randomly selected, find the probability that at least 2 of them use their smartphones in meetings or classes. The probability is (Round to four decimal places as needed.)
Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in
the table.
Drive-thru Restaurant D
A
В
C
D
Order Accurate
327
263
247
125
Order Not Accurate
39
50
33
15
If one order is selected, find the probability of getting an order from restaurant A or C or an order that is not accurate.
The probability of getting an order from restaurant A or C or an order that is not accurate is
(Round to three decimal places as needed.)
Transcribed Image Text:Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. Drive-thru Restaurant D A В C D Order Accurate 327 263 247 125 Order Not Accurate 39 50 33 15 If one order is selected, find the probability of getting an order from restaurant A or C or an order that is not accurate. The probability of getting an order from restaurant A or C or an order that is not accurate is (Round to three decimal places as needed.)
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