What is 2a (5.6 X 4.5)
2 answers:
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Answer:
0.9 hours
0
the nature of line is pure liner
Step-by-step explanation:
The attached graph is the drawn graph of given data
i) A teenager would spend exercising in one day if they spent 0.25 hours on social media.
0.9 hours
According to the graph if you locate the 0.25 hour on x-axis and draw perpendicular the will intersect the line on the value of y-axis is = 0.9 hours
ii) if they spent 1.38 hours on social media the corresponding value of exercising per day is approx 0
iii) Yes it has the best fit value of corresponding values between two. which is also reasonable in the all cases. the nature of line is pure liner.
Answer: a) 0.8413, b) 0.9987.
Step-by-step explanation:
Since we have given that
Mean = 3 pounds
Standard deviation = 0.25 pounds
n = 28 bricks
So, (a) What is the probability that all the bricks in the sample exceed 2.75 pounds?
b) What is the probability that the heaviest brick in the sample exceeds 3.75 pounds?
Hence, a) 0.8413, b) 0.9987.