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Naddik [55]
3 years ago
6

A bulb after certain testing had a life of 25 months. The standard deviation based on this sample of size one is

Mathematics
1 answer:
lapo4ka [179]3 years ago
8 0

Answer:

<h2>25 months</h2>

Step-by-step explanation:

Using the formula for calculating the standard error of the mean to get the standard deviation. The standard error of the mean is expressed as;

SE = S/√n where;

S is the standard deviation

n is the sample size

Given SE = 25 months and n = 1, on substituting this parameters into the formula, we will have;

25 = S/√1

25 = S/1

cross multiply

S = 25*1

S = 25 months

<em>Hence the standard deviation based on the sample is 25 months</em>

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Nesterboy [21]

Answer:

y = -5x + 8

Step-by-step explanation:

Slope intercept form is:

y = mx + b

m is the slope and b is the y-intercept.

Since the question gives you these values, all you need to do is plug it in. (x and y remain the same).

y = -5x + 8

I hope this helps!

4 0
3 years ago
While shopping Marcy spent $59. If the amount she spent is 25% of her savings, how much savings did she have before she shopped
aliya0001 [1]

Answer:

Savings= $236

Step-by-step explanation:

Giving the following information:

Money spent= $59

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3 years ago
Triangle Congruence Theorems
elixir [45]

Triangle Congruence Theorems

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Two angles and the side in between are congruent to the corresponding parts of another triangle (ASA: angle side angle)
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3 0
2 years ago
At a Noodles &amp; Company restaurant, the probability that a customer will order a nonalcoholic beverage is .42. Find the proba
pashok25 [27]

Answer:

0.497

Step-by-step explanation:

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From the question :

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P(x = 3) = 20 * 0.074088 * 0.195112

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Using a calculator :

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2 years ago
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