Answer:
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Step-by-step explanation:
Answer:
Option I
Step-by-step explanation:
Given that for families who live in apartments the scatterplot of the family’s income and the amount of rent they pay is approximately linear with a correlation of r = 0.60.
This implies that there is a positive association between income and rent paid.
Also since r is greater than 0.5, we can say that there is a moderately strong correlation.
All these can be interpreted as if income goes high, rent also would be higher.
The rise in rent due to income would be 0.6^2 =36% only
The regression line need not pass through 60% of income rent data points but it passes through average of the data points.
Hence only option I is right.
Answer:
2.3,7,127
Step-by-step explanation:
a₁ = 2
a₂ = 2² - 1 = 3
a₃ = 2³ - 1 = 7
a₄ = 2⁷ - 1 = 127
7( -4) + 2(2) -8(1.5)/2
= -28 + 4 - 12/2
= -28 + 4 -6
=-24-6
= -30
Your answer is -30.
