For this question, just multiply the number (300) by the percent (.95)
Your answer is 285 women
Answer:
The upper 20% of the weighs are weights of at least X, which is , in which is the standard deviation of all weights and is the mean.
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean and standard deviation , the z-score of a measure X is given by:
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 p-value, we get the probability that the value of the measure is greater than X.
Upper 20% of weights:
The upper 20% of the weighs are weighs of at least X, which is found when Z has a p-value of 0.8. So X when Z = 0.84. Then
The upper 20% of the weighs are weights of at least X, which is , in which is the standard deviation of all weights and is the mean.
Answer:5 + /- sqrt35
Step-by-step explanation:
Rearranging, we get x^2 -10x -10=0
Applying the quadratic formula,
(10 +/- sqrt(10^2 -4*-10))/2
(10+/- 2sqrt35) /2 = 5 + /- sqrt35 as the two roots.
23) The decimal place with the greatest digit difference is tenths place
ex: 1.2
^ that number right after the decimal is the tenths place
24) The difference between the heights of Mount Steele and Mount Blackburn is 0.048. I found this by subtracting the height of Mount Steele from the height of Mount Blackburn
25) You order the heights of the mountains by looking to see which mountain has the largest number before the decimal. If they are all the same number, you look to the first number behind the decimal, the tenths place and find what number is the largest, and closest to becoming another whole number. If they are all the same number again, you must look to the hundreths place to find the next largest number of the group. Whichever number has the largest number in this spot, would be the largest, as the mountain with the second largest number in the hundreths place would be the second largest mountain and so forth.
I hope this helps:)
Here is my answer:
a. 9x + 1
b. 9x + 57
c. 63x - 42
d. 63x - 6