Please help on this math problem. :))
2 answers:
Answer:
Step-by-step explanation:
First, we can make an equation by adding all the ages together and dividing it by the sum of the frequencies.
Now simplify.
We can divide this number by the sum of the frequencies.
Answer:
Step-by-step explanation:
First you need to find the total number of years of all the people tracked.
The general formula is
Total years = age*frequency for all ages.
Age Frequency Total
13 7 91
14 12 168
15 18 270
16 9 144
17 5 85
18 4 72
19 <u> 2 38</u>
Totals 57 868
The mean is the total number of years / total frequency
mean = 868/57
mean = 15.23
You might be interested in
Answer:
36
Step-by-step explanation:
Answer:
30%
Step-by-step explanation:
30 blocks are shaded out of the 100
Answer:
-3
Step-by-step explanation:
f(x) = x2 – 4
replace x with -1
f(-1) = (-1)^2 – 4
= -3
4x-8+4y is the equation distributed