How do you know if a scatter plot shows a linear relationship?
1 answer:
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Answer:
Distance he covers in of an hour =
miles.
Step-by-step explanation:
Phillip rode his bicycle at miles per hour.
To find distance he covers in of an hour.
Solution:
Speed at which Phillip rides = miles per hour
Time for which he cycles = of an hour
Distance covered in miles
To multiply mixed numbers we need to convert them to fractions.
⇒
⇒
Then we simply multiply the numerators and denominators.
⇒
Then we convert back to mixed fraction by dividing numerator by denominator and writing the quotient as whole number with fraction (remainder as numerator and denominator being the divisor)
⇒ miles.
∴ Distance he covers in of an hour =
miles.
Answer:
A)Predicted value = 103.5
B)Actual value = 102
C)So, these are not same
Step-by-step explanation:
The researcher used the line to model the data.
A)When the researcher substituted the value of x = 65 into this equation, what is the resulting y value?
Substitute value x=65 in equation :
y = -0.1 x +110
y=-0.1(65)+110
y=103.5
Predicted value = 103.5
B)Based on the coordinates of the given data points, what is the actual actual vision score when x=65?
Use the given graph
When x = 65
y = 102
So, The actual actual vision score when x=65 is 102
C)When the researcher substituted x = 65 into the line of equation, is the resulting y value the predicted value or the exit value for the vision score of a 65-year-old? Use your results for parts a and b to answer this question.
Predicted value = 103.5
Actual value = 102
So, these are not same