3 years ago

Please help! 40 POINTS for you PLUS A THANKS (both on answer and profile), 5 STAR and BRAINLIEST

Mathematics

1 answer:

stepladder [879]3 years ago

3 0

Sorry for bad hand writing

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Whats the bisector of the photosentisis of the yellow sun???!??!??!

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Evan wants to leave an 18% tip for the serve at a resturant. Which expression does not show how to calculate the tip if b is the

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Find the percent.<br>3 is what percent of 8?

shepuryov [24]

Answer:

37.5

Step-by-step explanation:

3/8

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3 years ago

Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 20. Find the prob

Ipatiy [6.2K]

Answer:

Randomly selected adult has an IQ less than 136 is 0.9641

Step-by-step explanation:

It is given that, it is normal distribution with mean 100 and SD as 20.

So, let's use the formula of z-score

z= $\frac{x-mean}{SD}$

For this problem,

x= 136

Plug in this value into the formula

z-score= $\frac{136-100}{20}$

=1.8

Now, use z-score table to find the probability

Find the corresponding value for the row 1.8 and the column 0.00, we do get 0.9641

So, Randomly selected adult has an IQ less than 136 is 0.9641

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3 years ago