In the following probability distribution, the random variable x represents the number of activities a parent of a K to 5th-grade student is involved in. Complete parts (a) through () below. to 1 2 3 4 P(x) 0.299 0.084 0.131 0.213 0.273 (a) Verify that this is a discrete probability distribution. This is a discrete probability distribution because the sum of the probabilities is 1 and each probability is between 0 and 1, inclusive. (b) Graph the discrete probability distribution. Choose the correct graph below. YA. O B. Oc. OD. Q 0.5- 04 0.5- 0.5- 0.- 4- 0.4- 0.4- 04- 0.3- 0.3- 0.2- 0.3- 0.3- 02- 0.2- 0.2- 0.1+ 0.1- 0.1- 0.1- 0- 0 1 0- 0 1 4 012 3 4 ó i 2 3 (c) Compute and interpret the mean of the random variable x. The mean is activities. (Type an integer or a decimal. Do not round.)
In the following probability distribution, the random variable x represents the number of activities a parent of a K to 5th-grade student is involved in. Complete parts (a) through () below. to 1 2 3 4 P(x) 0.299 0.084 0.131 0.213 0.273 (a) Verify that this is a discrete probability distribution. This is a discrete probability distribution because the sum of the probabilities is 1 and each probability is between 0 and 1, inclusive. (b) Graph the discrete probability distribution. Choose the correct graph below. YA. O B. Oc. OD. Q 0.5- 04 0.5- 0.5- 0.- 4- 0.4- 0.4- 04- 0.3- 0.3- 0.2- 0.3- 0.3- 02- 0.2- 0.2- 0.1+ 0.1- 0.1- 0.1- 0- 0 1 0- 0 1 4 012 3 4 ó i 2 3 (c) Compute and interpret the mean of the random variable x. The mean is activities. (Type an integer or a decimal. Do not round.)
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Question

Transcribed Image Text:In the following probability distribution, the random variable x represents the number of activities a parent of a K to 5th-grade student is involved in. Complete parts (a) through () below.
to
1
2
3
4
P(x)
0.299
0.084
0.131
0.213
0.273
(a) Verify that this is a discrete probability distribution.
This is a discrete probability distribution because the sum of the probabilities is 1 and each probability is between 0 and 1, inclusive.
(b) Graph the discrete probability distribution. Choose the correct graph below.
YA.
O B.
OC.
OD.
0.5-
04
Q
0.5-
0.5-
0.-
4-
0.4-
0.4-
0.4-
0.3-
0.3-
0.3-
0.3-
0.2+
0.2-
0.2-
0.2-
0.1+
0.1-
0.1-
0.1-
0-
0 1
0-
0 1
4
012
3 4
ó i 2 3
(c) Compute and interpret the mean of the random variable x.
The mean is activities.
(Type an integer or a decimal. Do not round.)
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