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torisob [31]
2 years ago
15

In a data set with a range of 55.1 to 102.8 and 300 observations, there are 207 data points with values less than 88.6. find the

percentile for 88.6. 32 116.03 69 670
Mathematics
1 answer:
AveGali [126]2 years ago
5 0
To find the percentile of a number, we simply use the formula:
Percentile= \frac{valuesbelow+0.5}{total observations} *100

It has been given in the problem statement that there are 207 values below 88.6 and the total number of observations is 300. We simply just divide these and multiply the quotient by 100.

Percentile_{88.6}= \frac{207.5}{300}*100=69.17

ANSWER: 88.6 is in the 69th percentile.
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Step-by-step explanation:

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Where D is the distance, V is the speed and t is the time.

As they are in opposite directions, we need to sum the speed.

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So using this value and V and using D = 610, we have:

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2 years ago
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3rd option
5 0
2 years ago
A given set of values is found to be a normal distribution with a mean of 140 and a standard deviation of 18.0. Find the value t
Alisiya [41]

Answer:

The value that is greater than 45% of the data values is approximately 137.84.

Step-by-step explanation:

The key is transforming values from this distribution to a z-score range and finding the corresponding value using a z-score table.

We are looking for a value x which attains a critical z-score that corresponds to the (100-45)%=55-th percentile:

z_{0.55} = \frac{x-\mu}{\sigma}=\frac{x-140}{18}\implies x = 18\cdot z_{0.55}+140

The critical z value (from z-score table, online) is: -0.12, so:

x = 18\cdot z_{0.55}+140=18\cdot(-0.12)+140\approx137.84

The value that is greater than 45% of the data values is approximately 137.84.


5 0
2 years ago
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Answer:

This really depends.

Step-by-step explanation:

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If a walnut costs 5 cents, he can buy 4.

If a walnut costs 20 cents, he can buy 3.

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