# Month: October 2020

#### Solved: Use R program : Given that X has a normal distribution with mean 18 and standard deviation 2.5

Given that X has a normal distribution with mean 18 and standard deviation 2.5, find a. $P(X < 15)$; b. the value k such that $P(X < k) = 0.2236$;…

#### Solved: Create a array with values from 21 to 68 with dimension 2,4,6? Print the element of row 2, column 4, and height 2

Create a array with values from 21 to 68 with dimension 2,4,6? Print the element of row 2, column 4, and height 2? Change the names of the Rows to…

#### Solved: Is lighter better? A random sample of men’s soccer shoes from an international catalog had the following weights (in oun

Is lighter better? A random sample of men's soccer shoes from an international catalog had the following weights (in ounces). 10.8 9.8 8.8 9.6 9.9 10 8.4 9.6 10 9.4…

#### Solved: Of the parts produced by a particular machine, 0.9% are defective. If a random sample of 7 parts produced by this machine contains

Of the parts produced by a particular machine, 0.9% are defective. If a random sample of 7 parts produced by this machine contains 2 or more defective parts, the machine…

#### Solved: 10. In a typical day, 31% of people in the United States with Internet access go online to get news. You randomly select five people

In a typical day, 31% of people in the United States with Internet access go online to get news. You randomly select five people in the United States with Internet…

#### Solved: A candidate for public office has claimed that 60% of voters will vote for her. If 5 registered voters were sampled

A candidate for public office has claimed that 60% of voters will vote for her. If 5 registered voters were sampled, What is the probability distribution function for this voting?…

#### Solved: Among eighteen computers in some store, six have defects. Five randomly selected computers are bought

Among eighteen computers in some store, six have defects. Five randomly selected computers are bought for the university lab. Compute the probability that all five computers have no defects. Solution…

#### Solved: 6.23 In the town of Hickoryville, an adult citizen has a 1% chance of being selected for jury duty next year

6.23 In the town of Hickoryville, an adult citizen has a 1% chance of being selected for jury duty next year. If jury members are selected at random, and the…

#### Solved: Grades in a statistics course and an operations research course taken simultaneously were as follows for a group of stud

Grades in a statistics course and an operations research course taken simultaneously were as follows for a group of students. Statistics Grade/ Operation Research Grade A B C Other A…

#### Solved: The television show NBC Sunday Night Football broadcast a game between the Colts and Patriots and received a share of 22

The television show NBC Sunday Night Football broadcast a game between the Colts and Patriots and received a share of 22, meaning that among the TV sets in use, 22%…