Question 6

Boxes contain 200 items of which 10% are red. 15 of the items are taken out of the box and put in a bowl. To find the probability that no more than 3 red items will be contained in the bowl, which distribution should be used?

Group of answer choices

Poisson as we can count the reds that are there but cannot count the ones that are not red.

Binomial as we can define success as red and failure as not red and the probability is constant.

Hypergeometric as we can define success as red and failure as not red and the probabilities change with each draw.

Any of the above can be used.

Question 7

A batch of 40 parts contains 10 defective parts. If a sample of 6 is selected. What is the probability of exactly 1 defective part in the sample?

Group of answer choices

(51)(3010)(406)

(61)(0.20)1(0.80)5

(406)(0.20)1(0.80)5

(101)(305)(406)

Question 8

The road works department is creating a budget and must assess the likelihood of accidents at various intersections in the county. A major intersection has averaged 4 reportable accidents per year. What is the probability of no accidents in the next year?

Group of answer choices

0.2212

0.0183

0.7780

Cannot be determined

Question 9

A student takes a quiz that contains 10 multiple choice questions, each with 4 responses with only one correct answer per question. The student did not study and guesses at every question. What is the probability of the student getting exactly 4 questions correct on the quiz?

Group of answer choices

0.0563

0.2816

0.1460

0.2503

Question 10

A baker has purchased a machine to dispense chocolate chips in cookie dough. On average, the number of chips in a cookie is 5. Customers complain if there are not many chips in the cookie. What is the probability that a cookie has less than 2 chips in it?Group of answer choices

0.142

0.019

0.040

0.024