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densk [106]
3 years ago
13

A set of final examination grades in a calculus course was found to be normally distributed with a mean of 69 and a standard dev

iation of 9. What percentage of students scored between 65 and 89?

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
7 0

Answer: 66%

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago
Lee Middle School orders 15 textbooks for every 12 students. The table shows how many textbooks the school orders for certain nu
Mariulka [41]

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Step-by-step explanation:

everytime you multiply the number of students you multiply the books by the same number. to find how many times 72 was multiplied you divide it by 12.

72 ÷ 12 = 6

then multiply the original number of books (15) by 6.

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so for every 72 students the school orders 90 textbooks

5 0
3 years ago
How many milliliters are equal to 1.5 gallons, if 1 liter = 1,000 milliliters and 1 gallon = 3.785 liters?
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6 0
3 years ago
Which table represents a linear function?
OleMash [197]

Answer:

the last option

Step-by-step explanation:

can you show the rest of the last option? if there isn't anything cutoff, then the last option would be correct. also, you can use desmos .com next time to help you graph

5 0
3 years ago
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The slope is 3/2

To find the slope, you have to use the slope formula

y2-y1/x2-x1

6-3/4-2

3/2

So the slope is 3/2
3 0
3 years ago
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