Question: Find the indicated probability by using the general addition rule. The manager of a bank recorded the amount of time each customer spent waiting in

Find the indicated probability by using the general addition rule.

The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The frequency table below summarizes the results

Waiting Time (minutes) Number of Customers

0 - 3 10

4 - 7 9

8 - 11 11

12 - 15 5

16 - 19 6

20 - 23 1

24 - 27 2

If we randomly select one of the times represented in the table, what is the probability that it is at least 12 minutes or between 8 and 15 minutes?

A. 0.568

B. 0.114

C. 0.696

D. 0.682

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

Find the indicated probability by using the general addition rule. The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The...

answer these four problems please thank you The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The frequency table below...

1 (4 points) 1 Find the range for the given data. Rich Borne is currently taking Chemistry 101. On the five laboratory assignments for the quarter, he got the following scores: Compute the range....

UIZ 2 Name___________________________________ STAT 200; INTRODUCTION TO STATISTICS; SPRING 2017 Due by 11:59pm EDT SUNDAY Please answer all 16 questions. The maximum score for the quiz is 80 points...

JUST NEED THE ANSWER! 2. Elaine gets quiz grades of 71, 75, and 64. She gets a 60 on her final exam. Find the weighted mean if the quizzes each count for 30% and the final exam counts for 50% of the...

Answer these four problems please thank you Use the Venn diagram to list the elements of the following set: (A' B) U B 131 11 14 12 15 16 17 18 19 O (13, 17) O {11, 12, 14, 15, 16, 18, 19) o (11, 13,...

Question 17 of 30 (3 points) |Attempt 1 of 1 | ( 1h 42m Remaining 4-7 8-11 12-13 16-19 20-23 Find the indicated probability. 24-27 The manager of a bank recorded the amount of time each customer...

How much is the total VAT on local sales and importation? The following data taken from its books are presented to you by Fish Fresh, Canned and Dried, VAT-registered company. Sale of locally...

Which of the following is NOT a network solid and WHY? a. Elemental silicon, Si(s) b. Diamond, C(s) c. Buckminster fullerene, C60(s) d. Silicon Dioxide, SiO2(s) e. Graphite i know the answer is A but...

Diversification across international financial markets are optional for investors because it will not improve the Sharpe Ratio. True False

Letts commercial paper is presently selling at a discount. It sells for 98.30 of par and matures in 100 days. (Use 365 days a year. Do not round intermediate calculations. Round the final answers to...