Answer & Step-by-step explanation:
Regression studies the relationship between independent / explanatory (causal) variable, dependent / response (effected) variable. Scatter plot is a diagrammatic representation of regression.
Aspartame Concentration, being a toxic substance, is likely to have negative regression relationship with mice survival rate. It implies that higher concentration leads to lower mice survival, & lower concentration leads to higher mice survival.
The relationship can be strong or weak, depicted by 'r' magnitude, depending upon the intensity of concentration impact on survival. If more percent of the variation in survival rate can be explained by variations in concentrations, regression coefficient is high. If less percent of the variation in survival rate can be explained by variations in concentrations, regression coefficient is low
We have to construct a triangle DEF with EF = 7 cm. It is given that we have to make an angle of 50⁰ at E and at F.
Steps to make a triangle DEF:
Step 1: Draw a line segment EF equal to 7 cm, using a ruler.
Step 2: Put the center of the protractor on the one end of the line segment that is at E and make the given angle that is 50⁰.
Step 3: Make the angle of 50⁰ at F by using protractor.
Step 4: Extend the line from E and F in the direction of 50⁰. After extending the line segments, we get an intersection point, name that point D..
Step 5: The point D, is made from the intersection of the line segment from E and F.
Step 6: Hence, triangle DEF is constructed.
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Riiiight her buddy and history
