Answer:
Mode = 15
Mean = 12.8
Step-by-step explanation:
Given the data :
As obtained form the dot plot :
X : 11, 11, 11, 12, 12, 12, 13, 13, 13, 13, 14, 14, 15, 15
The mean of the data:
Mean = ΣX / n
Mean = 179 / 13
Mean = 12.785 = 12.8 years
Mode = most frequently occurring value = 15
https://www.tiger-algebra.com/drill/25-y%3C21/Step-by-step explanation:
$ 9
Simple Interest = P.R.T / 100
P = Principal (Amount invested) =$30
R = Rate= 10%
T = Time = 3 years
Therefore, Simple Interest (I):
I = PRT/100
I = ($30 * 10 * 3 ) / 100
I = $900 / 100
I = $9
She will have a total of $9 in three years
Substitute x and y values for zero. Or