A florist determines the probabilities for the number of flower
arrangements they deliver each day.
x...
A florist determines the probabilities for the number of flower
arrangements they deliver each day.
x
19
20
21
22
23
P(x)
0.21
0.23
0.33
0.11
0.12
Find the mean, variance, and standard deviation of the
distribution rounded to 4 decimal places.
Mean =
Variance =
Standard Deviation =
Approximately how many arrangements should the florist expect to
deliver each week, rounded to the nearest whole number?
how do you find this using excel?
To find the variance, we FIRST...
A florist determines the probabilities for the number of flower
arrangements they deliver each day.
x...
A florist determines the probabilities for the number of flower
arrangements they deliver each day.
x
19
20
21
22
23
P(x)
0.20
0.23
0.31
0.13
0.13
Find the mean, variance, and standard deviation of the
distribution rounded to 4 decimal places.
Mean =
Variance =
Standard Deviation =
Approximately how many arrangements should the florist expect to
deliver each week, rounded to the nearest whole number?
The distribution of scores on a recent test closely followed a
Normal Distribution...
1 the probability distribution of x, the number of
defective tires on a randomly selected automobile...
1 the probability distribution of x, the number of
defective tires on a randomly selected automobile checked at a
certain inspection station, is given in the following table.
The probability distribution of x, the number of defective
tires on a randomly selected automobile checked at a certain
inspection station, is given in the following table.
x
0
1
2
3
4
p(x)
.53
.15
.08
.05
.19
(a) Calculate the mean value of x.
μx =
(a) Calculate the mean...
A concerned parents group determined
the number of commercials shown in each of five children’s programs...
A concerned parents group determined
the number of commercials shown in each of five children’s programs
over a period of time.
Number of commercials, X
5
6
7
8
9
Probability, P(X)
0.2
0.25
0.38
0.10
0.07
(a) Find the mean,
variance, and standard deviation for the distribution shown.
(b) What is the
probability that fewer than 6 or more than 8 commercials.
(c) What is the
probability that at least 6 commercials.
20 women and 30 men between 18 to 60 years old and the
number of hours...
20 women and 30 men between 18 to 60 years old and the
number of hours that they work. These information would be your
populations. For each group find the followings:
20 Women Ages = 19, 23, 40, 18, 60, 50, 21, 30, 33, 28,
33, 35, 28, 24, 28, 18, 19, 22, 25, 50
20 women work hours weekly = 40, 24, 30, 31, 19, 10, 21,
5, 40, 9, 8, 40, 37, 12, 20, 40, 20, 10, 40,...