mubasharshafiq1583
25.01.2021 •
Mathematics
Every day for a week, he counts how many times each player can leg press 350 pounds. The following week, he has each player sprint 40 yards every day. The tables shows the average number of leg-press repetitions and the average 40-yard dash time (in seconds) for seven randomly selected players. What is the equation of the line of best fit
Solved
Show answers
More tips
- W Work and Career What is the Most In-Demand Profession in the Modern World?...
- A Auto and Moto How Can Parking Sensors Help Drivers?...
- H Health and Medicine What is the Normal Blood Sugar Level in a Healthy Person?...
- F Food and Cooking Red Caviar: How to Choose the Best?...
- C Computers and Internet Clearing Cache: How to Speed Up Your Browser...
- S Style and Beauty How are artificial nails removed?...
- S Style and Beauty Secrets of Tying a Pareo: 5 Ways...
- F Food and Cooking Everything You Need to Know About Pasta...
Answers on questions: Mathematics
- M Mathematics F(x)=4x+5 classify the function...
- M Mathematics Be sure to show your work and solve for g: g + 6 − 3 = 31...
- M Mathematics If the point (3, 10) is on f(x), which point will be on f(x)+3? please help me :(...
- M Mathematics (8x-14)° (5y+16)° (5x+34)° Write the equation to solve for x and y...
- M Mathematics Question You flip a coin 10 times and get heads 6 times. Based on this experiment, what is the probability of flipping a coin and getting heads? Select the correct answer below:...
- M Mathematics 2 x + 5 = 4 x + 8 Pls help...
- M Mathematics Jack wants to buy a coat that costs $74.95. The sales tax rate in his city is 612% . What is the total cost for the coat? Round to the nearest cent....
- M Mathematics Does anyone know how to find the values of Y in a function table?...
- M Mathematics Square root of 9 I ll mark the 1st...
- M Mathematics Ms. Kork sold her car for $8700. This was $100 more than two fifths of what she had paid for the car originally. How much mad Ms. Kork paid for the car?...
Ответ:
Complete question :
A college football coach wants to know if the is a correlation between his players' leg strength and the time it takes for them to sprint 40 yards. he sets up the following test and records the data:
Every day for a week, he counts how many times each player can leg press 350 pounds. The following week, he has each player sprint 40 yards every day. The tables shows the average number of leg-press repetitions and the average 40-yard dash time (in seconds) for seven randomly selected players. What is the equation of the line of best fit? How many seconds should he expect a player to take to run 40 yards if that player can do 22 leg-press repetitions?
Leg Press (reps)|40-yard Dash (s)
15 |5.2
18 |6.3
8 |6.8
30 |8.2
26 |8.0
12 |5.3
21 |5.9
ŷ = 0.1073X + 4.5365
6.9
Step-by-step explanation:
Leg Press (reps)X:
15
18
8
30
26
12
21
Y:
5.2
6.3
6.8
8.2
8.0
5.3
5.9
Using a regression calculator :
The equation of line of best fit is :
ŷ = 0.1073X + 4.5365
Slope or gradient = 0.1073
Intercept = 4.5365
X = independent or predictor variable (leg press)
Y = predicted variable (40 yard dash)
B)
X = 22
Y = 0.1073(22) + 4.5365
Y = 6.8971
Y = 6.9
Ответ:
y- y0 = f´ (x0) (x - x0 ). In this case: x0=1, y0=1
f´(x)=(Derivation)
f´(x0)=
y - 1 = 1/2 ( x - 1 )
y - 1 = 1/2 x - 1/2
y = 1/2 x - 1/2 + 1
y =