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hram777 [196]
3 years ago
11

Under the normal curve, approximately what percent of scores fall between and -1 to +1 standard deviations around the mean?

Mathematics
1 answer:
prohojiy [21]3 years ago
3 0
According to the empirical rule, roughly 68% of the scores fall between z = -1 and z = 1 

You can use a calculator to get a more approximate answer. If you have a TI calculator, you can use the "normalcdf" function to type in normalcdf(-1,1)
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3 years ago
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Step-by-step explanation:

- 5 - ( - 4) =  - 5 + 4 =  - 1 \\  - 4 - ( - 5) =  - 4 + 5 = 1 \\  - 4 - (5) =  - 4 - 5 =  - 9 \\ 4 - ( - 5) = 4 + 5 = 9

Therefore ranking them from least to most:

- 4 - (5) \\  - 5 - ( - 4) \\  - 4 - ( - 5) \\ 4 - ( - 5)

5 0
2 years ago
Point A has the coordinates (2,2). What are the coordinates of its image point if it is translated 2 units up and 5 units to the
Marysya12 [62]
A translation of 2 units up will increase the y coordinate by 2 units and a translation by 5 units to the left will decrease the x coordinate by 5. Hence after these translations point (2,2) becomes 

<span>(2 - 5 , 2 + 2) = (-3,4) </span>

When point (-3,4) is reflected in the x axis, its y coordinate changes sign and point (-3 ,4) becomes 

<span>(-3,-4)</span>
5 0
3 years ago
Please please please help asap
antoniya [11.8K]

Answer:

1,3,5

Step-by-step explanation:

81 is a perfect square so it can be written as an integer

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sqrt(6) isn't a perfect square so it is irrational

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7 0
2 years ago
How many times can 3 go into 500
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500 divided by 3 is 166.666667

I hope this helps:)
3 0
3 years ago
Read 2 more answers
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