Brand question: Question 10

Question 104 pts

With the following probability distribution, find the mean.

x	f(x)
3	0.30
4	0.22
5	0.13
6	0.35

Answer Choice Group

0.17

4.53

2.1

3.34

Brand question: Question 11

Question 114 pts

Use the binomial distribution table or formula to find the binomial probability when n = 10, p = 0.15, k = 3.

Answer Choice Group

0.1298

0.0401

0.2759

0.2013

Brand question: Question 12

Question 124 pts

Using the Poisson distribution table or formula, determine the probability when = 3, if x = 1.

Answer Choice Group

0.0550

0.1494

0.2240

0.0498

Brand question: Question 13

Question 134 pts

If in a binomial distribution you have the data n = 5, q = 0.3, calculate the mean.

Answer Choice Group

3.5

2.1

1.5

3.9

Brand question: Question 14

Question 144 pts

Calculate the standard deviation if in a binomial distribution you have the data n = 8, q = 0.35.

Answer Choice Group

1.82

1.35

1.94

2.15

Brand question: Question 15

Question 154 pts

Consider a standard normal random variable with = 0 and a standard deviation =1. Use the standard normal distribution table to find P (Z < 1.88).

Answer Choice Group

0.9966

0.9824

0.9699

0.9963

Brand question: Question 16

Question 164 pts

Consider a standard normal random variable with = 0 and a standard deviation =1. Use the standard normal distribution table to find P (-2.26 < Z < 2.26).

Answer Choice Group

0.9881

0.019

0.119

0.9762

Brand Question: Question 17

Question 174 pts

Evaluates 10P6.

Answer Choice Group

210

121,600

800

151,200

Brand question: Question 18

Question 184 pts

Evaluates 8C5.

Answer Choice Group

210

56

96

120

Brand question: Question 19

Question 194 pts

Find the expected value if the values of x are 0, 1, 2, and 3; with corresponding frequencies of 0.1, 0.4, 0.4 and 0.1.

Answer Choice Group

1.25

1.5

1.0

2.1

Brand question: Question 20

Question 204 pts

Calculate the area under the normal curve when z=1.6.

Answer Choice Group

0.9452

0.5000

0.5875

0.7213

Brand question: Question 21

Question 214 pts

Use the binomial table or formula to find the probability when n=5, x=1, p=0.40.

Answer Choice Group

0.135

0.621

0.259

0.314

Brand question: Question 22

Question 224 pts

Use the Poisson table or formula to find the probability when x=6, =5.5.

Answer Choice Group

0.686

0.666

0.354

0.157

Brand question: Question 23

Question 234 pts

Let x be a binomial random variable with n = 8, p = 0.6. Find the average.

Answer Choice Group

5.1

4.8

3.6

3.3

Brand question: Question 24

Question 244 pts

Let x be a binomial random variable with n = 10, p = 0.4. Find the standard deviation.

Answer Choice Group

1.55

1.73

2.4

1.44

Brand question: Question 25

Question 254 pts

Let x be a binomial random variable with n=5, x=3 and p=0.75; find P(3) using the binomial formula.

Answer Choice Group

0.34

0.48

0.09

0.26