You are analyzing the revenues of 3 IT companies (MBI, Letni and PH) over a period of 25 years. You find that the annual revenues of these companies have Normal Distributions. Interestingly, the average annual revenue is equal $6B for each of the three companies. However, the standard deviation of the annual revenue of MBI, Letni and PH is 1.2, 0.8 and 0.9, respectively. Match the shape of the Normal Distribution Curve of revenue with associated companies!

1. Steepest:

a. PH

b. Letni

C. MBI

D. It cannot be determined from the given information

2. Flattest

a. PH

b. Letni

C. MBI

D. It cannot be determined from the given information

  the correct choice is marked

step-by-step explanation:

the first two graphs show multiple turning points. the last graphs matches the description in every detail.

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!