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vagabundo [1.1K]
3 years ago
7

Find the percentage of students that scored higher than 95.5. Round your answer to the nearest percent.

Mathematics
1 answer:
My name is Ann [436]3 years ago
6 0

Answer:

\% Change = \frac{9}{64} *100 = 14.0625\% \approx 14\%

So then we have approximately 14% of the values higher than 95.5

Step-by-step explanation:

For this case we assume that the info is given on the figure attached.

From this figure we have the following frequencies for each class

Class                  Frequency

___________________________

70.5-75.5                13

75.5-80.5                7

80.5-85.5                6

85.5-90.5                10

90.5-95.5                19

95.5-100.5               9

____________________________

Total                        64

So we have a total of 64 values and we want to find the percentage of students that scored higher than 95.5 so we can use the formula of relative change and we got:

\% Change = \frac{9}{64} *100 = 14.0625\% \approx 14\%

So then we have approximately 14% of the values higher than 95.5

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Step-by-step explanation:

SURFACE AREA of a cylinder is 2×pi×r×(h+r)

=> 2×3.14×7×(8+7)

=>43.96×(15)

=>659.4 mm^2

4 0
3 years ago
Can like someone help me with O.o.O (order of operations)
Fantom [35]

Answer:

183

Step-by-step explanation:

168+2^3+3^3-20=

Exponents

168+8+27-20

Addition

203-20

Subtraction

183

183 is the answer.

3 0
2 years ago
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Your Two-Day-Pass to a theme park is $76. This is $31 less than your uncle's Two-Day-Pass. what is the price of you uncle's pass
PIT_PIT [208]

Answer:

45

Step-by-step explanation:

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7 0
3 years ago
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In a recent survey, 60% of the community favored building a health center in their neighborhood. If 14 citizens are chosen, find
andreev551 [17]

Answer:

Probability that exactly 5 of them favor the building of the health center is 0.0408.

Step-by-step explanation:

We are given that in a recent survey, 60% of the community favored building a health center in their neighborhood.

Also, 14 citizens are chosen.

The above situation can be represented through Binomial distribution;

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

where, n = number of trials (samples) taken = 14 citizens

         r = number of success = exactly 5

        p = probability of success which in our question is % of the community

              favored building a health center in their neighborhood, i.e; 60%

<em>LET X = Number of citizens who favored building of the health center.</em>

So, it means X ~ Binom(n=14, p=0.60)

Now, Probability that exactly 5 of them favor the building of the health center is given by = P(X = 5)

        P(X = 5) = \binom{14}{5} \times 0.60^{5} \times (1-0.60)^{14-5}

                      = 2002 \times 0.60^{5} \times 0.40^{9}

                      = 0.0408

Therefore, Probability that exactly 5 of them favor the building of the health center is 0.0408.

4 0
3 years ago
Help me please. Can somebody please help me.
Monica [59]

Answer:

oh my :o

Ok so just mutiply

Step-by-step explanation:

4 0
3 years ago
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