Rehan paid 560p for 7 pencils.if the price of each pencil was the same.work out the price of 4 such pencils
2 answers:
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9514 1404 393
Answer:
1 -√2
Step-by-step explanation:
tan(7π/8) = 1 -√2
Answer:
0.1463
Step-by-step explanation:
Number of observations = 10
Sample mean = 10.5
Sum of standard deviation = 264.5
X = 14
We are to calculate The leverage statistic for study hour 14 using the data above
= 1/10 + (14-10.5)²/264.5
= 1/10 + 3.5²/264.5
= 0.1 +12.25/264.5
= 0.1+0.04631
= 0.1463 is the leverage statistic for the study
