A small computing center has found that the number of jobs submitted per day to its computers has a distribution that is approximately mound-shaped and symmetric, with a mean of 86 jobs and a standard deviation of 12. Where do we expect approximately 95% of the distribution to fall?Group of answer choicesbetween 62 and 110 jobs per daybetween 50 and 122 jobs per daybetween 110 and 122 jobs per daybetween 74 and 98 jobs per day

The distribution of scores on a test is mound-shaped and symmetric with a mean score of 78. If 68% of the scores fall between 72 and 84, which of the following is most likely to be the standard deviation of the distribution?Group of answer choices21236

The amount of time workers spend commuting to their jobs each day in a large metropolitan city has a mean of 70 minutes and a standard deviation of 20 minutes. Assuming nothing is known about the shape of the distribution of commuting times, what percentage of these commuting times are between 30 and 110 minutes?Group of answer choicesat least 95%at least 89%at least 0%at least 75%

Find the mean of the following distribution.The daily wages of 50 employees in an organization are given below:Daily wages (in $)100 - 150150 - 200200 - 250250 - 300Number of Workers1213178Find the mean daily wages.

For a certain online store, the distribution of number of purchases per hour is approximately normal with mean 1,200 purchases and standard deviation 200 purchases. For what proportion of hours will the number of purchases at the online store exceed 1,400? 68% B 32% 16% 5% E 2.5%

Define the normal distribution. The daily wages of 1000 workers are normally distributed with mean of Rs.140 and with S.D.Rs.10 .Estimate the no. of workers whose daily wages will be (i) more than Rs.160 (ii) less than Rs. 126 and(iii) betweenRs.140 and Rs.144