Ask question

Ask question

All categories

3 years ago

14

What is the variance of the value 7, 15, 11, 1, 11

1 answer:

ella [17]3 years ago

8 0

The variance of the value 7,15,11,1,11 is 22.4

You might be interested in

Graph the first six terms of a sequence where a1 = 2 and r = 4.

zavuch27 [327]

We are given with
a1 = 2
r = 4

These are components of a geometric series. The first term is 2 and the common ratio is 4. To get the first six terms, we use the formula:
an = a1 r^(n-1)
a1 = 2 (4)^(1-1) = 2
a2 = 2 (4)^(2-1) = 8
a3 = 2 (4)^(3-1) = 32
a4 = 2 (4)^(4-1) = 128
a5 = 2 (4)^(5-1) = 512
a6 = 2 (4)^(6-1) = 2048

8 0

3 years ago

Read 2 more answers

2//2/2/3/2/2//3/3/3//3/3/4/5/5

Wewaii [24]

Answer:

can u be more specific so i can properly help u

Explanation:

pls explain and i will edit my answer

6 0

2 years ago

Read 2 more answers

Factor the trinomial by using the factor X method 3n-8n+4

Alex73 [517]

3n² - 8n + 4
3n² - 6n - 2n + 4
(3n - 2)(n - 2)

7 0

3 years ago

The population of a town grows at a rate proportional to the population present at time t. The initial population of 500 increas

Mazyrski [523]

Answer:

The population in 40 years will be 1220.

Step-by-step explanation:

The population of a town grows at a rate proportional to the population present at time t.

This means that:

$P(t) = P(0)e^{rt}$

In which P(t) is the population after t years, P(0) is the initial population and r is the growth rate.

The initial population of 500 increases by 25% in 10 years.

This means that $P(0) = 500, P(10) = 1.25*500 = 625$

We apply this to the equation and find t.

$P(t) = P(0)e^{rt}$

$625 = 500e^{10r}$

$e^{10r} = \frac{625}{500}$

$e^{10r} = 1.25$

Applying ln to both sides

$\ln{e^{10r}} = \ln{1.25}$

$10r = \ln{1.25}$

$r = \frac{\ln{1.25}}{10}$

$r = 0.0223$

So

$P(t) = 500e^{0.0223t}$

What will be the population in 40 years

This is P(40).

$P(t) = 500e^{0.0223t}$

$P(40) = 500e^{0.0223*40} = 1220$

The population in 40 years will be 1220.

7 0

3 years ago

Susan wants to buy a paddle boat for $840. She'll pay 20% down and pay the rest in six monthly installments. What will be the am

koban [17]

136 but there will be remainder

5 0

3 years ago