Answer:
Option C is correct.
Step-by-step explanation:
The given data would be most appropriately displayed by a box-and-whisker plot.
a box-and-whisker plot will represent it by representing in form of rectangle with second and third quartile
And in box and whisker plot
The vertical line will represent the median.
Therefore, option C is correct.
Answer:
70%
Step-by-step explanation:
Answer:
23 students expected to have scores greater than 60.
Step-by-step explanation:
60 is 2 standard deviations above the mean. This translates into a z-score of +2. According to a table of z-scores, the area under the standard normal curve to the left of z = 2 is 0.9772; that to the right of z = 2 is 1.0000 - 0.9772, or 0.0228. This 0.0228 represents the probability that a given score is greater than 60.
This fraction (0.0228) of 1000 students comes out to 23 (rounded up from 22.75).
Answer:
B. (5,-2)
Step-by-step explanation:
Plug in X and Y, verify accuracy
