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zhuklara [117]
3 years ago
15

.837537537 as a fraction

Mathematics
2 answers:
pickupchik [31]3 years ago
8 0

Answer:

.837537537 =  

837537537

1000000000

Step-by-step explanation:

Ugo [173]3 years ago
4 0

Answer:

0

-

1000000000

i think it will help you

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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
Someone please help me, i’ve been stuck on this question and can’t figure it out.
kenny6666 [7]

Answer:

5/8

Step-by-step explanation:

the range is the largest number minus the smallest number so

1 1/4 - 5/8

5/4 - 5/8

you would take 5/4 *2 to get like denominators so,

10/8-5/8= 5/8

7 0
3 years ago
Read 2 more answers
Janice used a 16-inch dowel and a 21-inch dowel to build a kite what is the perimeter of her kite
marusya05 [52]
16x2=32
21x2=42
32+42=54

the perimeter is 54
6 0
3 years ago
Helpppp pleaseeeeeee
dlinn [17]
4*9+6 / -3
multiply 4 and 9

36 + 6 / -3
add 36 and 6

42 / -3
divide 

- 14
7 0
3 years ago
Read 2 more answers
Which ordered pair describes point P? <br> A) -2, +4 <br> B) -2, -4 <br> C) +4, -2<br> D) -4, -2 
zimovet [89]
The answer is a.  (-2, 4). The horizontal line is the x-axis, and the vertical line is the y-axis, so the coordinate points would be (x, y) and (-2, 4) fit those coordinates. Hope this helps! :)
7 0
3 years ago
Read 2 more answers
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