So malik is considering investing $900 in a certain company. financial advisors forecast that there is a 30% chance that the stock will increase in value by 150%, and a 50% chance that he will lose his initial investment. determine if malik should make the investment, and find the expected value of the investment.

B. No, the expected value is –$45

Step-by-step explanation:

Define three events  

A = stock increases in value by 150%  

B = stock loses value  

C = no change in stock value  

Probabilitlies  

P(A) = 0.30  

P(B) = 0.50  

P(C) = 0.20  

Net Value  

V(A) = 1.5*900 = 1350  

V(B) = -900  

V(C) = 0  

Expected value  

E(X) = P(A)*V(A)+P(B)*V(B)+P(C)*V(C)  

E(X) = 0.3*1350 + 0.5*(-900) + 0.2*0  

E(X) = -45  

Malik is expected to lose about 45 dollars on average  

He should not make the investment

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.

28

step-by-step explanation:

because that's the answer