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soldier1979 [14.2K]
3 years ago
12

30 ounces is how many pounds

Mathematics
1 answer:
Effectus [21]3 years ago
5 0

the answer is 1.875 pounds

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Your firm has a contract to make staff uniforms for a fast-food retailer. The heights of the staff are normally distributed with
FromTheMoon [43]

Answer:

a) 16%

b) 2.5%

Step-by-step explanation:

a)

The mean is 70 with standard deviation(SD) of 3 and you are asked to find out the percentage of staff that have <67(70-3 inch= mean - 1 SD) inch size, which means 1 SD below the mean (<-1 SD). Using 68-95-99.7 rule, you can know that 68% of the population is inside 1 SD range from the mean ( -1 SD to + 1 SD).

To put it on another perspective, there are 32% of the population that have < -1 SD and > +1 SD value. Assuming the distribution is symmetrical, then the value of < - 1 SD alone is 32%/2= 16%

b)

The question asks how many populations have size >76 inches, or mean + 2 SD (70+3*2 inch).

You can also solve this using 68-95-99.7 rule, but you take 95% value as the question asking for 2 SD instead.  Since 95% of population is inside 2 SD range from the mean ( -2 SD to + 2 SD), so there are 5% of population that have < -2 SD and > +2 SD value. Assuming the distribution is symmetrical, then the value of > +2 SD alone is 5%/2= 2.5%

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3 years ago
Samara has an assignment to conduct a survey. She wants to find out what students like to do after school. She asks the first 10
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Pls help I need this done asap
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I can help you solve this.

but first telll me in the comments what is the formula for this equation and ill tell u from there

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A ball is thrown into the air with an upward velocity of 48 ft/s. Its height h in feet after t seconds is given by the function
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The answer to this, your question is                                                                               h = -16t • 2 + 48t + 6
h = -32t + 48t + 6
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3 years ago
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What is the value of ( 4^2 − 6 ) ÷ 2 × 3^2 ?
Amanda [17]

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Step-by-step explanation:

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