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Mila [183]
3 years ago
13

The SAT mathematics scores in the state of Florida for this year are approximately normally distributed with a mean of 500 and a

standard deviation of 100.
Using the empirical rule, what is the probability that a randomly selected score lies between 500 and 700? Express your answer as a decimal
Mathematics
1 answer:
Radda [10]3 years ago
3 0

Answer:

The correct answer is 47.5%, or 0.475.

Step-by-step explanation:

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James and his family spend a morning picking peaches. They fill several bags. This line plot shows the weight of each bag.
Mariulka [41]

Answer:

1 1/2

Step-by-step explanation:

The first step is to figure out the lightest and the heaviest bad. The lightest bag is 4 1/4 and the heaviest is 5 3/4. Now to subtract, you can't subtract this as a mixed fraction so turn each fraction into an improper fraction by multiplying the whole number by the denominator then adding the numerator to the product of the whole number multiplied  by the denominator (if you didn't know numerator is the top and the denominator is the bottom. To find out 4 1/4 as an improper fraction follow these steps (4*4+1=17) so 4 1/4=17/4. The process is the same for 5 3/4 (5*4+3=23) so   5 3/4= 23/4. Now to subtract, you subtract the numerator but not the denominator. You subtract because the question asks how many more and that means to subtract 23/4-17/4= 6/4. Last step is to turn this back into a mixed fraction do that by dividing the numerator by the denominator, 6 divided by 4 equals 1.5 and turn the decimal into a fraction 1 is a whole number so you don't  change that but the 5 behind the decimal needs to be changed so now 1.5= 1 5/10 and last step is simplify 1 1/2. Hope this helped :).

6 0
3 years ago
Read 2 more answers
Simplify the expression. –8z – 14z –22z 6z 6 22z
Liula [17]

Answer:

-22z

Step-by-step explanation:

They are a sum of two like-term negative Integers, so just add them to get the above answer.

I am joyous to assist you anytime.

3 0
3 years ago
A bag contains 7 green marbles and 4 white marbles. You select a marble at random. What are the odds in favor of picking a green
mixas84 [53]
Ok, there's 11 marbles total so 65%
6 0
3 years ago
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If y varies directly with x and y is 6 when x is 72 what is the value of y when x is 8
AnnZ [28]
The answer is D.) 96
4 0
3 years ago
A number, x, is 4 times another number, y. The difference between the two numbers is 18. What is the value of the larger number?
rewona [7]

Answer:

The smaller number x = 5, and the larger number y = 13

Hope this was helpful----

3 0
3 years ago
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