5. The number of service calls received by a local fire department is between 0 and 5. The probabilities are 0.10, 0.15, 0.30, 0.20, 0.15, 0.10, respectively. a. Write the probability distribution for the number of service calls in a given day. b. What is the expected number of service calls per day in this fire department

2.45

Step-by-step explanation:

1. Probability distribution shows us sample space(number of calls) and their probabilities

Number of calls. Probability

0. 0.10

1. 0.15

2. 0.30

3. 0.20

4. 0.15

5. 0.19

2. We are to find expected number of calls

(0x0.1) + (1x0.15) + (2x0.30) + (3x0.20) + (4x0.15) + (5x0.10)

E(X) = 0 +0.15 + 0.6 + 0.6 + 0.6 + 0.5

= 2.45

The expected number of Service calls per day is 2.45

Thank you!

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

answer: i guess 105 degrees?

step-by-step explanation: