Adriving exam consists of 29 multiple-choice questions. each of the 29 answers is either right or wrong. suppose the probability that a student makes fewer than 6 mistakes on the exam is 0.26 and that the probability that a student makes from 6 to 20 (inclusive) mistakes is 0.53. find the probability of each of the following outcomes. a. a student makes more than 20 mistakes b. a student makes 6 or more mistakes c. a student makes at most 20 mistakes d. which two of these three events are complementary?

Answer and explanation:

Given : A driving exam consists of 29 multiple-choice questions. Each of the 29 answers is either right or wrong. Suppose the probability that a student makes fewer than 6 mistakes on the exam is 0.26 and that the probability that a student makes from 6 to 20 (inclusive) mistakes is 0.53.

Let X be the number of mistake

To find : The probability of each of the following outcomes.

a) A student makes more than 20 mistakes

i.e.

b. A student makes 6 or more mistakes

i.e.

c. A student makes at most 20 mistakes

i.e.

Using 'a' part  

d. Which two of these three events are complementary?

The complement of an event happening is the exact opposite: the probability of it not happening.

According to definition,

Option a and c are complementary events.

answer: 5

step-by-step explanation:

since, the range is the difference between the lowest and highest values of the given sample space.

and, here the sample space = { 3, 1, 0, 4, 1, 4, 2, 3, 0, 5, 0, 1, 1, 2, 0, 4, 1,4, 4 ,2 ,3 ,2 ,0 ,1 ,4 }

here, the highest value of the given sample = 5

and, the lowest value = 0

therefore, the range of the sample space = 5 - 0 = 5

step-by-step explanation:

where is the question is there is a formula or is there not one