Alocal survey determined that 4 out of every 10 internet users have downloaded music at some point. at this rate, out of 60 internet users, how many have downloaded music? ans explainn

24

Step-by-step explanation:

If 4 out of 10 users download music that means that 40% of internet users download music.

So if 40% of 60 users download music that means that 24 users will download music.

[Users] x [Percent] = Total

60 x 0.4 = 24

:)

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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exactly you go it

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