An investment of $6,530 earns interest at the rate of 4% and is compounded quarterly. what is the accumulated value of the investment at the end of 8 years? a. $7,071.05 b. $7,659.97 c. $8,936.76 d. $8,978.36

$8978.36

Step-by-step explanation:

An investment of $6,530 earns interest at the rate of 4% and is compounded quarterly.

we apply compound interest formula

Where P is the principal amount invested = 6530

r is the rate of interest = 4% = 0.04

t = number of years = 8

n = compounding terms. compounded quarterly so n= 4

A=  8978.36263080

Answer : $8978.36

step-by-step explanation:

mean or average is 40.6

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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