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kvv77 [185]
3 years ago
7

Please help me quickly!!??

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
8 0

Answer:

I think the ancer is c

Step-by-step explanation:

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IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What percentage of people have an IQ score
Brrunno [24]
We need to find the area under the standard normal curve that is to the right of 66.

Various ways of doing this include the following:

1) Calculator:  normalcdf(66, 10000, 100, 15) = 0.988, or 98.8%

2) z-scores (using a published table of z scores)
                                                                                      66 - 100
     a)  Find the z score corresponding to 66.  It is z = -------------- = -2.27
                                                                                             15

      b) Find the area under the st. normal curve to the left of z=-2.27 (it is                   0.012).  Subtract that area from the total area, 1.000.  The result will                be the answer to this question. 

8 0
3 years ago
What is the unit rate in words?
alexgriva [62]
When rates are expressed as a quantity of 1, such as 2 feet per second<span> or </span>5 miles per hour<span>, they are called unit rates. If you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.</span>
4 0
4 years ago
Solve for x.<br> 2/x = 6/2
irakobra [83]
The answer is x=2/3!! Hope this helped
8 0
3 years ago
Read 2 more answers
choose a number that is greater than 60 and has a 4 in the ones place. show how to illustrate that number using rods and cubes.
german
84 yeah 84 84 84 84 84 84 84

7 0
3 years ago
Based on the data in this two-way table, if a flower is picked at random, what is the probability of getting a yellow flower?
Marysya12 [62]

Answer:

3/7

Step-by-step explanation:

(# yellow)/(total #) = 135/315 = 3/7

The probability that a randomly chosen flower will be yellow is 3/7.

5 0
4 years ago
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