What is the difference between a simple linear regression model and a multiple linear regression model?

Scotia Bank offers a 4-year rate raiser RRSP. The annual compound rates are 2.5%, 3.2%, 3.8% and 4.2%. Determine the average annual rate of interest earned during the four year period.

A) 3.423%
B) 4.323%
C) 5.156%
D) 6.571%
E) 7.676%

The following data are the magnitudes of earthquakes around the world recorded on January 13,2008.
Because of equipment problems,two earthquakes were unrecorded,although it was known that both had a value less than 2.7.The median magnitude of earthquakes on this date is

A) 2.95.
B) 3.9.
C) 4.0.
D) 3.1.
E) This cannot be determined without knowing the exact value of the missing magnitudes.

Don, Bob, and Ron Maloney's partnership interests in Maloney Bros. Contracting are in the ratio of their capital contributions of $78,000, $52,000, and $65,000, respectively. What is the ratio of Bob's to Ron's to Don's partnership interest?

Under what unusual circumstances will the rate of mark-up on cost equal the rate of mark-up on selling price?

According to Brides.com, the average cost of a wedding gown was $1075. Therefore, in this study, how would the null and alternative hypotheses be stated?

A) H₀: μ > 1075; H₁: μ < 1075
B) H₀: μ ≠ 1075; H₁: μ = 1075
C) H₀: μ = 1075; H₁: μ ≠ 1075
D) H₀: μ = 2432.14; H₁: μ ≠ 2432.14

​Emily wants to put curtains on doors of her living room. The door was 15 feet long and 5 feet wide. How many meters of curtains did she need to buy? Round to the next larger whole number.