2 years ago

A measure that describes the typical value of a data set

Mathematics

1 answer:

jonny [76]2 years ago

6 0

<u>e</u>

<u>measure of center</u>

as A measure that describes the typical value of a data set mean,median and mode.

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3.14 and

stepladder [879]

Answer:

471ft^3

Step-by-step explanation:

5^2 x 6 x 3.14

25 x 6 = 150

150 x 3.14 = 471

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3 years ago

Find the side length of a cube when the volume is 216 ft cubed. A) 72 ft B) 6 ft C) 108 ft D) 219 ft

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If its 216 cubic inches it would be A)

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The record low temperature in Cuba is 33°F. The record high temperature in Cuba is 102°F. How many degrees warmer is the record

AnnZ [28]

Answer:

Step-by-step explanation:

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3 years ago

Show numerically and explain your answer explain (-2)+5 in I need help

Korvikt [17]

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3 years ago

The life in hours of a 75-watt light bulb is known to be normally distributed with standard deviation σ = 25 hours. A random sam

irina [24]

Answer: a) (1008.34,1019.658) b) (1009.24,1018.76)

Step-by-step explanation:

Since we have given that

n = 75

mean = 1014 hours

Standard deviation = 25 hours

At 95% two sided , z = 1.96

So, confidence interval would be

$\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=1014\pm 1.96\dfrac{25}{\sqrt{75}}\\\\=1014\pm 5.658\\\\=(1014-5.658,1014+5.658)\\\\=(1008.34,1019.658)$

(b) Construct a 95% lower confidence bound on the mean life.

z = 1.65

So, confidence interval would be

$\bar{x}\pm z\times \dfrac{\sigma}{\sqrt{n}}\\\\=1014\pm 1.65\times \dfrac{25}{\sqrt{75}}\\\\=1014\pm 4.76\\\\=(1014-4.76,1014+4.76)\\\\=(1009.24,1018.76)$

Hence, a) (1008.34,1019.658) b) (1009.24,1018.76)

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3 years ago