What’s the
mean
Median
Mode

mean: 4.5 (1dp)

median: 4

mode: 6

Step-by-step explanation:

mean:

0 + 1 + 1 + 2 + 2 + 2 + 2 + 3 + 3 + 3 + 4 + 4 + 4 + 5 + 5 + 6 + 6 + 6 + 6 + 6 + 7 + 8 + 8 + 9 + 10 = 113

113 divided by 25 = 4.52, or just 4.5 (rounded to one decimal place

median:

(middle) = 4

mode:

(most occurring) = 6

Step-by-step explanation:

a) The cost of the house is $30000.

We would apply the periodic interest rate formula which is expressed as

P = a/{[(1+r)^n]-1}/[r(1+r)^n]

Where

P represents the monthly payments.

a represents the amount of the loan

r represents the annual rate.

n represents number of monthly payments.

From the information given,

a = $30000

r = 0.084/12 = 0.007

n = 12 × 3 = 36

Therefore,

P=30000/{[(1+0.007)^36]-1}/[0.007(1+0.007)^36]

P = 30000/{1.285 -1}/[0.007(1.285)]

P = 30000/[(0.285/0.008995

P = 30000/31.68

P = $947

b) The total amount that he would pay in 3years is

947 × 36 = 34092

The total cumulative interest is

34092 - 30000 = $4092