The sample standard deviation is 7.6 and the sample variance is 2.76.
for the scores 5, 2, 2, 7, 9.
According to the question,
Sample size n = 5
Sample Mean = [5+2+2+7+9]/5
= 5
Formula for sample standard deviation = (x-mean)²/n
= [(5-5)²+(2-5)²+(2-5)²+(7-5)²+(9-5)²]/5
= [0+9+9+4+16]/5
= 38/5
= 7.6
Formula for sample variance = √sample standard deviation
=√7.6
=2.76.
Hence, the sample standard deviation is 7.6 and the sample variance is 2.76.
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Answer:
We conclude that the red drown has the greater the acceleration.
Step-by-step explanation:
Given
Given that all 3 drones have the same mass.
To determine:
Which drone has the greatest acceleration
From the figure, it is clear that the red drown has a steeper slope. We know that the steeper the slope of the line the greater the acceleration.
It is also visible the red drone has already covered 50 km in just 50 minutes speed, while the blue drone covered around 30 km in 50 minutes and the green drone is the slowest of all, covering less than 20 km in 50 minutes.
Therefore, we conclude that the red drown has the greater the acceleration.
B you can tell just by look x^2*x^2=x^4
Is f(x) meant to be equal to 65x+750, or 65*x*750
The answer is 7
Step by step 5 apples and 2 oranges
