Weekday lunch demand for spicy black bean burritos at the kiosk, a local snack bar, is approximately poisson with a mean of 22. the kiosk charges $4.00 for each burrito, which are all made before the lunch crowd arrives. virtually all burrito customers also buy a soda that is sold for 60¢. the burritos cost the kiosk $2.00, while sodas cost the kiosk 5¢. kiosk management is very sensitive about the quality of food they serve. thus, they maintain a strict "no old burrito" policy, so any burrito left at the end of the day is disposed of. the distribution function of a poisson with mean 22 is as follows:

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

(w – 2.5)(w + 2.5)

(–4v – 9)(–4v + 9)

step-by-step explanation:

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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