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Nitella [24]
2 years ago
9

I need help with this Adding Fractions problem. If you answer and fill out this whole page I will love you for the rest of my li

fe. My mom is in the hospital and I have to go visit her I wont have time to do my homework tonight and my teacher will be mad if I don't do it tonight. Its ok if you cant do it I understand since you have your own homework to do.
Mathematics
1 answer:
zhannawk [14.2K]2 years ago
8 0

Answer:

omigosh hope she gets better i will look at the pdf and solve

Step-by-step explanation:

okay so for most of them you can just multiply by the denominator to turn it into a regular number (to get it out of fraction form) and then use basic algebra to solve for x. I 'll write the answers to problems 1-9 in the comments

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