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Elina [12.6K]
2 years ago
8

The dot plots show rainfall totals for several spring storms in highland areas and lowland areas.

Mathematics
2 answers:
Marysya12 [62]2 years ago
4 0

Answer:

30 and 26

Step-by-step explanation:

ziro4ka [17]2 years ago
3 0

Answer:

Part A)  <u>Option c) 15.27 mm</u>

Part B)   <u>Option b) 12.05 mm</u>

Step-by-step explanation:

The mean is also sometimes called the average

To find the mean, you add up every number in the data set, and you divide that sum by the total number of data points within the set.

A) What is the mean rainfall for the highland storms?

The sum of the data of Highlands storms

= 2*2 + 3*4 + 2*6 + 3*8 + 4*10 + 3*12 + 4*14 + 5*16 + 5*18 + 4*20 + 2*22 + 24 + 2*26 + 2*28 + 30 + 32 = 672

the total number of data = 44

Mean = 672/44 = 15.27 mm

So, the answer is <u>option c) 15.27 mm</u>

B) What is the mean rainfall for the lowland storms?

The sum of the data of Lowland storms

= 3*2 + 5*4 + 3*6 + 3*8 + 5*10 + 7*12 + 6*14 + 4*16 +2*18 + 20 + 2*22 + 24 + 2*28 = 530

the total number of data = 44

Mean = 530/44 = 12.05 mm

So, the answer is <u>option b) 12.05 mm</u>

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