3 years ago

Help please i need it thanks.

Mathematics

1 answer:

Shalnov [3]3 years ago

8 0

Answer:

x is less than or equal to 7

Step-by-step explanation:

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The data in the tables below were collected from first year students at a community college. The variable is "number of credit c

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It is given that P(x) is said to be complete or proper probability distribution if it satisfies the following two ways :

1. $P(x) \geq 0$

2. $\sum_z P(x) = 1$

Now consider,

$\sum_z P(x) = 1$

⇒ $P(x=0)+P(x=1)+P(x=2)+P(x=3)+P(x=4)+P(x=5)=1$

⇒ $0.61+T+0.14+0.01+0.01+0.03=1$

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= 0.2

Therefore, the value of T is 0.2

Thus, option (c) is correct.

7 0

3 years ago