2 years ago

Please help me find the answe asap

Mathematics

1 answer:

Andreyy892 years ago

4 0

Answer:

Step-by-step explanation:

the mean is calculated as

mean = $\frac{sum}{count}$

this year's mean = $\frac{7+3.3+2}{3}$ = $\frac{12.3}{3}$ = 4.1

last year's mean = $\frac{5.3+1.6+2.4}{3}$ = $\frac{9.3}{3}$ = 3.1

difference = 4.1 - 3.1 = 1

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