Answer:
73.5
Step-by-step explanation:
To find the mean, sum the data and divide by the amount of data
mean = 
=
= 73.5
8*4=32
7*4=28
340÷32=10.625
350÷28=12.5
12.5-10.625= 1.875
Answer:
0.48
hope this helps
have a good day :)
Step-by-step explanation:
Answer:

Step-by-step explanation:
The first term of the sequence is

To find the second term add
to the first term;

To find the third term add
to the second term;

To find the fourth term add
to the third term;

The first four terms are
