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Airida [17]
2 years ago
12

Find the sum of the series described by an=-32, d=2 and n=17

Mathematics
1 answer:
klasskru [66]2 years ago
5 0
Answer will be 2 i hope this help

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If IQ scores are normally distributed with a mean of 100 and a standard deviation of 5, what is the probability that a person se
notsponge [240]

Answer:

2.28% probability that a person selected at random will have an IQ of 110 or higher

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 = 100, \sigma = 5

What is the probability that a person selected at random will have an IQ of 110 or higher?

This is 1 subtracted by the pvalue of Z when X = 110. So

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

Z = \frac{110 - 100}{5}

Z = 2

Z = 2 has a pvalue of 0.0228

2.28% probability that a person selected at random will have an IQ of 110 or higher

5 0
2 years ago
One third kaylee's age increased by 12 is equal to twice her age decreased by 3. how old is kaylee?
andreyandreev [35.5K]
I would think Kaylee is 5 since 12 divided by 3 is 4 and 4 * 2 is 8, and 8-3 is 5. So, I would think Kaylee is 5.
3 0
3 years ago
Read 2 more answers
Six hikers shared 4 1/2 lbs of trail mix. How much trail mix did each hiker receive?
babunello [35]
6 hikers = 4.5 lbs of trail mix

4.5 divided by 6= .75 lbs each hiker.
3 0
3 years ago
Read 2 more answers
10 exponent negative 9 divided by 10 exponent negative 3
anygoal [31]
\frac{x^a}{x^b}=x^{a-b}  \\ x^{-a}= \frac{1}{x^a}  \\  \\  \\  \frac{10^{-9}}{10^{-3}} =10^{-9-(-3)}=10^{-9+3}=10^{-6}= \frac{1}{10^6} = \frac{1}{1000000} =0,000001
8 0
3 years ago
Pleaseeee helppppp!!
Softa [21]

Answer:

60.4

Step-by-step explanation:

90-29.6= 60.4

complimentary means either of two angles whose sum is 90°.

7 0
3 years ago
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