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Anton [14]
2 years ago
10

The ages of cars in the staff parking lot of a suburban college are uniformly distributed from 0 to 8 years. a) What is the mean

age of cars in the lot
Mathematics
1 answer:
Novay_Z [31]2 years ago
8 0

Answer:

Mean = 4

Step-by-step explanation:

Given

Range = 0 to 8 years

Distribution: Uniform Distribution

Required

Determine the mean

The mean of a uniform distribution is calculated as thus:

Mean = \frac{a + b}{2}

Where a and b are the range of the distribution

In this case:

b = 8; a = 0

So, we have:

Mean = \frac{0 + 8}{2}

Mean = \frac{8}{2}

Mean = 4

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The confidence interval is to .
navik [9.2K]

Answer:

See below

Step-by-step explanation:

The purpose of the confidence interval is to give a range of where the true value of a parameter lies given a confidence level.

8 0
2 years ago
Eight less than a number is seventy-five. What is the number? -67 67 83
frozen [14]

8-75 = x

x=8+75

x= 83

 the number is 83

5 0
3 years ago
Read 2 more answers
Mops
Ipatiy [6.2K]

Answer:

270

Step-by-step explanation:

For any arithmetic sequence

nth term is given by

nth term = a + (n-1)d

where a is first term,

d is common difference

d is given by nth term - (n-1)th term

sum of n terms given by

sum = n/2(2a + (n-1)d)

________________________________________________

Given arithmetic sequence

-2,0,2,4,6,8...

first term a = -2

lets take third term as nth term and second term as (n-1)th term to find common difference d.

d = 2 - 0 = 2

using a = -2 , d = 2, n = 18

thus, sum of first 18 terms = n/2(2a + (n-1)d)

                                           =18/2( 2*(-2) + (18-1) 2)

                                           =9 ( -4 + 34)

                                           =9 ( 30) = 270

Thus, sum of first 18 terms is 270.

7 0
2 years ago
Evaluate.<br><br> 2 • {[5 • (60 – 14 ÷ 7)] + 25} • 5
Sliva [168]
2\cdot\{[5\cdot(60-14:7)]+25\}\cdot5=2\cdot5\cdot\{[5\cdot(60-2)]+25\}\\\\=10\cdot(5\cdot58+25)=10\cdot(290+25)=10\cdot315=3150
7 0
2 years ago
The cylinder below has r = 10 inches and a volume of 6283 cubic inches to the nearest cubic inch. Find the height of the cylinde
kaheart [24]
V=hpir^2
r=10
v=6283

6283=hpi10^2
6283=100hpi
divide both sides by 100
62.83=hpi
aprox pi=3.141592
divide both sides by pi
19.9994143=h
so about 20 inches
6 0
2 years ago
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