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s344n2d4d5 [400]
3 years ago
5

What are some ways to show 7 and 8 on the number line

Mathematics
1 answer:
photoshop1234 [79]3 years ago
3 0
One way to put 7 and 8 on a number line is by putting 7 and 8 on a number line. Hope this helps.
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A copy machine makes 84 copies in 3 minutes and 30 seconds. How many copies does it make per minute
lyudmila [28]

Answer:

24

Step-by-step explanation:

30 secs  = 0.5 min

thus 84 / 3.5 min = 168 / 7 = 24

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3 years ago
Need help solving this problem
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Here is the solution for the eqns.

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Analyze each step to identify if Andy made an error. Yes, he made an error in Step 1. He switched the x and y values. Yes, he ma
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Assume that different groups of couples use the XSORT method of gender selection and each couple gives birth to one baby. The XS
olganol [36]

Answer:

Mean and Standard deviation for the numbers of girls in groups of 36 births are 18 and 3 respectively.

Step-by-step explanation:

We are given that he X SORT method is designed to increase the likelihood that a baby will be a girl, but assume that the method has no effect, so the probability of a girl is 0.5.

Now consider a group consisting of 36 couples.

The above situation can be represented through binomial distribution;

P(X=r)=\binom{n}{r} \times p^{r} \times (1-p)^{n-r} ;x=0,1,2,3,.....

where, n = number of trials (samples) taken = 36 couples

            r = number of success

            p = probability of success which in our question is probability

                   of a girl, i.e.; p = 0.5

<em><u>Let X = Numbers of girls in groups of 36 births </u></em>

So, X ~ Binom(n = 36, p = 0.5)

Now, mean for the numbers of girls in groups of 36 births is given by;

         <u>Mean</u>, E(X) = n \times p = 36 \times 0.5 = 18

Also, standard deviation for the numbers of girls in groups of 36 births is given by;

        <u>Standard deviation</u>, S.D.(X) =  \sqrt{n\times p\times (1-p)}

                                                      =  \sqrt{36\times 0.5\times (1-0.5)}

                                                      =  3

3 0
3 years ago
HELP QUICK
Jobisdone [24]

Answer:

0.055

Step-by-step explanation:

You want to move the decimal from the % left two places.

5 0
2 years ago
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