5×607 using the distributive property
1 answer:
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Answer:
About twenty-one percent of twelve month old boys are shorter than 28.8 inches.
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean and standard deviation
, the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:
About twenty-one percent of twelve month old boys are shorter than what height?
This is the value of X when Z has a pvalue of 0.21. So it is X when Z = -0.805.
About twenty-one percent of twelve month old boys are shorter than 28.8 inches.
Using cartesian coordinates concepts such as midpoint and distance between two points, it is found that:
- The location point of the Ferris wheel is (15,24).
- They need to walk 20 units.
- The coordinates of the hotdog stand are (23,8).
- Water ride is at point (3,8).
- Roller coaster is at point (27,40).
- The Ferris wheel is at the midpoint of the water ride and the roller coaster, thus it's coordinates are the <u>mean of their coordinates.</u>
The location point of the Ferris wheel is (15,24).
The distance between two points, and
is given by:
Here, Tiffany and her sister are at (15,24) while their parents are at (3,8). Thus, their distance is:
They need to walk 20 units.
- Hotdog stand is directly east of the water ride, thus, it has the <u>same y-coordinate, while the x-coordinate is increased</u>.
- The distance is of 20 units, thus:
The coordinates of the hotdog stand are (23,8).
A similar problem is given at brainly.com/question/24352869