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rjkz [21]
3 years ago
15

Employee retention is a major concern for many companies. A survey of Americans asked how long they have worked for their curren

t employer (Bureau of Labor Statistics website, December 2015). Consider the following example of sample data of 2000 college graduates who graduated five years ago.
Mathematics
1 answer:
ki77a [65]3 years ago
5 0

Answer:

Step-by-step explanation:

Discrete probability distribution can be written as follows

X. Number P(X)

1 . 506 (506/2000) = 0.253

2 390 (390/2000) = 0.195

3 310 (310/2000) = 0.155

4 218 (218/2000) = 0.109

5 576 (576/2000) = 0.288

Solution(b)

For valid discrete probability distribution total probability should be 1

P= 0.253+0.195+0.155+0.109+0.288 = 1

So it is a discrete probability distribution.

Solution(c)

Probability for more than 3 years = p(X=4) + P(X=5) = 0.109+0.288 = 0.397 or 39.7%

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