See the attached picture:
A hairdresser gives between 6 and 20 haircuts in a day. She works six days per week. What is a reasonable estimate of the number
1 answer:
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Answer:
2
Step-by-step explanation:
Take any 2 points on the graph,
(80, 90) & (40, 10)
Use the slope formula:
= (10-90)/(40-80)
= (-80)/(-40)
= 2
Hence, the slope is 2.
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Answer: Not unusual.
Step-by-step explanation:
We know that the z-scores lower than -1.96 or higher than 1.96 are considered as unusual.
Given : Sample size : n= 65
Sample mean =
Standard deviation :
Formula for z-score :
At x= 213
Since , -1.96< 0.17 <1.96
It means the probability of a sample mean being greater than 213 is not unusual.