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Anna007 [38]
3 years ago
10

I need to figure out how to find the top blank

Mathematics
2 answers:
dmitriy555 [2]3 years ago
6 0
I think its 384 because if you multiply the two numbers underneath then you get 384 which is how they got all the other numbers

Mnenie [13.5K]3 years ago
5 0

The answer would be 384 because when you multiply 48 x 8= 348

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A distribution of values is normal with a mean of 220 and a standard deviation of 13. From this distribution, you are drawing sa
Paraphin [41]

Answer:

The interval containing the middle-most 48% of sample means is between 218.59 to 221.41.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

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.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributied random variable X, with mean \mu and standard deviation \sigma, the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}

In this problem, we have that:

\mu = 220, \sigma = 13, n = 35, s = \frac{13}{\sqrt{35}} = 2.1974

Find the interval containing the middle-most 48% of sample means:

50 - 48/2 = 26th percentile to 50 + 48/2 = 74th percentile. So

74th percentile

value of X when Z has a pvalue of 0.74. So X when Z = 0.643.

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

By the Central Limit Theorem

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

0.643 = \frac{X - 220}{2.1974}

X - 220 = 0.643*2.1974

X = 221.41

26th percentile

Value of X when Z has a pvalue of 0.26. So X when Z = -0.643

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

-0.643 = \frac{X - 220}{2.1974}

X - 220 = -0.643*2.1974

X = 218.59

The interval containing the middle-most 48% of sample means is between 218.59 to 221.41.

5 0
3 years ago
Sean invests $10,000 at an annual rate of 5% compounded continuously, according to the
tatiyna

Answer:

if you have a pic of question send it plz then will give answer

Step-by-step explanation:

7 0
3 years ago
Jonah's house and his grandparents house or 8046.7 I 2 m apart what is this distance in miles
Free_Kalibri [48]

Answer:

1.523

Step-by-step explanation:

1 mile equals 5280 feet

7 0
3 years ago
A plumbing contractor receives proceeds of $4,713.54 on a 12.5% simple discount note with a face value of $5,000. Find the time
kolbaska11 [484]
I = Prt
t = I/(Pr)
.. = (5000 -4713.54)/(5000*0.125)
.. = 165/360

The time period of the note is 165 days.
8 0
3 years ago
WHAT IS THE VALUE OF x IN CENTIMETERS <br> A. 30cm<br> B. 8cm<br> C. 10.8cm<br> D.22.5cm
Katarina [22]

Answer:

D)22.5cm

CB/BA=HG/13.5

CB=15cm,BA=9cm,HG=x and GF=13.5

15/9=x/13.5(divided by 13.5both sides)

x=22.5cm

3 0
3 years ago
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