Math easy
1. how many ways can you purchase 5 cds if there are 6 to choose from, 2 cassettes if there are 5 to choose from, and 4 dvds if there are 8 to choose from?

2. a pizza place offers 6 different cheeses and 12 different toppings. in how many ways can a pizza be
made with 1 cheese and 3 toppings?

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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step-by-step explanation:

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