Using the normal distribution, it is found that the correct option is:
In a <em>normal distribution</em> with mean and standard deviation , the z-score of a measure X is given by:
- It measures how many standard deviations the measure is from the mean.
In this problem:
- The mean on the Wechsler Scale is of 100, hence .
- The standard deviation is of 17, hence .
- Brianna had an score of 117, hence
Then:
Hence, the option d is correct.
To learn more about the normal distribution, you can check brainly.com/question/24663213
Answer:
x = 71
Step-by-step explanation:
x + 25 = 96
=> x = 96 - 25
=> x = 71
Answer: Level of the liquid dropping at 28.28 inch/second when the liquid is 2 inches deep.
Step-by-step explanation:
Since we have given that
Height = 9 inches
Diameter = 6 inches
Radius = 3 inches
So,
Volume of cone is given by
By differentiating with respect to time t, we get that
Now, the liquid drips out the bottom of the filter at the constant rate of 4 cubic inches per second, ie
and h = 2 inches deep.
Hence, level of the liquid dropping at 28.28 inch/second when the liquid is 2 inches deep.
Answer:
A
Step-by-step explanation:
common ratio of 0.5.
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6 lbs per day means that every day 6 pounds are gained. 6 days per lb means that every 6 days 1 pound is gained (or lost)