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yKpoI14uk [10]
3 years ago
15

Anyone know the answer ?

Mathematics
1 answer:
liberstina [14]3 years ago
5 0

Answer:

y ≥ -1x +2

Step-by-step explanation:

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A person must score in the upper 8% of the population on an IQ test to qualify for membership in MENSA, the international high-I
Cloud [144]

Answer:

A person must get an IQ score of at least 138.885 to qualify.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 115, \sigma = 17

(a). [7pts] What IQ score must a person get to qualify

Top 8%, so at least the 100-8 = 92th percentile.

Scores of X and higher, in which X is found when Z has a pvalue of 0.92. So X when Z = 1.405.

Z = \frac{X - \mu}{\sigma}

1.405 = \frac{X - 115}{17}

X - 115 = 17*1.405

X = 138.885

A person must get an IQ score of at least 138.885 to qualify.

5 0
3 years ago
Read 2 more answers
The average length of a ladybug can range from 0.08 to 0.4 inches. Find two lengths that are within the given span.Write them as
Alenkinab [10]
The average length of a ladybug can range from 0.08 to 0.4 inches.

So two lengths within the given span are 0.1 inch and 0.3 inches.

In  \: fraction: \\  \\ 0.1 \: inch =  \frac{1}{10}  \: inch \\  \\ 0.3 \: inch =  \frac{3}{10}  \: inch
7 0
3 years ago
Chris has $170.00. Candies cost $8.50 each. How many candies can Chris buy? $<br> Blank
Yuki888 [10]

Answer:

20

Step-by-step explanation:

170/8.5

8 0
3 years ago
Find the range of the function<br> F(x) = (x-2)2 +2
viktelen [127]
(x - 2)^2 will always be positive and will have a minimum value of  0 

so f(x) will have minimum of 2

Range is [2,∞)
8 0
3 years ago
An item is regularly priced at $40 . Milan bought it at a discount of 45% off the regular price. How much did Milan pay?
maw [93]
45%=.45
40*.45=18
40-18=22
8 0
3 years ago
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