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suter [353]
2 years ago
6

A density curve for all the possible ages between 0 years and 50 years is in the shape of a triangle. What is the height of the

triangle? O A. 0.04 O B. 0.02 O c. 0.01 O D. 0.08 SUBMIT​

Mathematics
1 answer:
Alex_Xolod [135]2 years ago
5 0

Answer:

0.04

Step-by-step explanation:

For a density curve, total area = 1

Probability lies in between 0 and 1

The Area of triangle :

Area = 1/2 base * height

Base = 0 - 50 = 50

Area = 1

Hence,

1 = 1/2 * 50 * h

1 = 50h / 2

2 = 50h

h = 2 / 50

h = 0.04

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3 years ago
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nata0808 [166]

Answer:

−35.713332 ; 0.313332

Step-by-step explanation:

Given that:

Sample size, n1 = 11

Sample mean, x1 = 79

Standard deviation, s1 = 18.25

Sample size, n2 = 18

Sample mean, x2 = 96.70

Standard deviation, s2 = 20.25

df = n1 + n2 - 2 ; 11 + 18 - 2 = 27

Tcritical = T0.01, 27 = 2.473

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S = sqrt[(18.25^2 / 11) + (20.25^2 / 18)]

S = 7.284

(μ1 - μ2) = (x1 - x2) ± Tcritical * S

(μ1 - μ2) = (79 - 96.70) ± 2.473*7.284

(μ1 - μ2) = - 17.7 ± 18.013332

-17.7 - 18.013332 ; - 17.7 + 18.013332

−35.713332 ; 0.313332

3 0
2 years ago
Sarah has 20 bags of chips for her party 1/4 of the chips were doritos and 1/5 of the remaining chips are sour cream and onion h
LuckyWell [14K]
Answer:
3 bags of sour cream and onion crisps

Explanation:
1/4 of 20 is 20 divided by 4 so there are 5 packs of Doritos.

20-5=15 packs still left

1/5 of the remaining bags is 1/5 of 15. 15 divided by 5 is 3.

There are 3 bags of sour cream and onion crisps.

Hope this helped!
5 0
3 years ago
Read 2 more answers
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