Question

1. jude and emely have decided to do an experiment testing how sunlight affects plant growth. the students choose the same type of plants, soil, pots and amount of water they give the plants. they also make sure each plant is put in their designated area for the same amount of time each day. one plant is placed outside: one in front of a window that only gets light for 1/2 the day, and one in a closet. the students collect data every day for two weeks. their results show that the plant outside grew the most and the plant in the closet had the least amount of growth.

what are the constant variables that jude and emely used in their experiment?
a. type of plants
b. the amount of light
c. type of soil
d. a and c
e. a and b

1. in a hypothesis the ____________ variable is what is being tested, while the ____________ variable is the one being measured in response.

a. dependent; independent
b. independent; dependent
c. control; dependent
d. independent; control

1. a golf club company has four models of golf clubs. average strokes saved per 18 holes is a positive indicator of quality (the more strokes saved, the better the golf clubs). the manufacturing time per set is a measure of how long it takes to manufacture one set of clubs. if the company wishes to produce a lot of golf clubs quickly, which set would be the best choice to meet their criteria, based on the data table?

a. taylor made
b. legacy
c. premium
d. titleist

Explanation:

Step1: Analyze the problem

The company wants to produce a lot of golf clubs quickly. So we need to look at the manufacturing time per set. The less manufacturing time, the more sets can be produced quickly.

Step2: Compare manufacturing times

• Legacy: 2 hours per set
• Titleist: 1 hour per set
• Premium: 4 hours per set
• Taylor Made: 6 hours per set

Since \(1<2<4<6\), Titleist has the least manufacturing time.

Answer:

D. Titleist