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Verizon [17]
3 years ago
8

SOMEONE HELPPPPPPPP

Mathematics
2 answers:
inessss [21]3 years ago
8 0

WITH WHAT THE SCREEN MAD BLURRY

dangina [55]3 years ago
5 0
A= 28
B= 36+28=64
C= okay so it’s 64 or either 128
I’m more sure it’s 64 so go for 64!
Oh I got 128 by doing 64 times 2
You might be interested in
Consider a value to be significantly low if its z score less than or equal to minus−2 or consider a value to be significantly hi
den301095 [7]

Answer:

Test scores of 10.2 or lower are significantly low.

Test scores of 31 or higher are significantly high

Step-by-step explanation:

Z-score:

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 20.6, \sigma = 5.2

Significantly low:

Z-scores of -2 or lower

So scores of X when Z = -2 or lower

Z = \frac{X - \mu}{\sigma}

-2 = \frac{X - 20.6}{5.2}

X - 20.6 = -2*5.2

X = 10.2

Test scores of 10.2 or lower are significantly low.

Significantly high:

Z-scores of 2 or higher

So scores of X when Z = 2 or higher

Z = \frac{X - \mu}{\sigma}

2 = \frac{X - 20.6}{5.2}

X - 20.6 = 2*5.2

X = 31

Test scores of 31 or higher are significantly high

6 0
3 years ago
Find the median for the data set: 3,12,35,12,9,6,3,3,3,3,9,3
elena-s [515]
I’m pretty sure the answer is 6
4 0
3 years ago
HEY CAN ANYONE PLS ANSWER DIS MATH QUESTION!!!
sladkih [1.3K]

Answer:

the correct answer is B :) can i have brainly?

Step-by-step explanation:

8 0
3 years ago
Assume that blood pressure readings are normally distributed with a mean of 123 and a standard deviation of 9.6. If 144 people a
Vanyuwa [196]

Answer:

The probability is 0.9938

Step-by-step explanation:

In this question, we are asked to calculate the probability that the mean blood pressure readings of a group of people is less than a certain reading.

To calculate this, we use the z score.

Mathematically;

z = (mean - value)/(standard deviation/√N)

From the question, we can identify that the mean is 125, the value is 123 , the standard deviation is 9.6 and N ( total population is 144)

Let’s plug these values;

z = (125-123)/(9.6/√144) = 2.5

Now we proceed to calculate the probability with a s score less than 2.5 using statistical tables

P(z<2.5) = 0.9938

8 0
3 years ago
What is the value of 4p − 2, when p = 8
ddd [48]
If P=8, Then you would plug in 8 for P. 

4(8)-2 = 30 

Hope this helps :)
4 0
3 years ago
Read 2 more answers
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