3 years ago

Find the Mean, Median and mode

Mathematics

1 answer:

krek1111 [17]3 years ago

7 0

12, 16 18, 24, 28, 31, 32, 32, 32

Mode: 32

Mean: 12 + 16 + 18 + 24 + 28 + 31 + 32 + 32 + 32 = 225 ÷ 9 = 25

Mean: 25

Median: 28

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The explicit rule for a sequence is given.

never [62]

Answer:

$a_{1} =\frac{2}{5}$ ,Recursive formula is :

$a_{n} =a_{n-1} .5$

Step-by-step explanation:

To find a1 we put n=1 in the given Geometric sequence :

$a_{1} =\frac{2}{5}5^{1-1}$

$a_{1} =\frac{2}{5}$

$a_{2} =\frac{2}{5}5^{2-1} = 2$

Common difference = 2÷ $\frac{2}{5}$ = 5.

r=5.

Recursive formula for a geometric sequence is

$a_{n} =a_{n-1} .r$

Recursive formula is :

$a_{n} =a_{n-1} .5$

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