In a hypothetical study, researchers found that the average donut sold by Krispy Kreme contains 260 calories, with a standard deviation of 35 calories. At stores where calorie information was located next to the menu items, the average donut sold contained only 240 calories.
Based on this information, Cohen's d equals:

A)-.57 B)1.75 C).57 D)-1.75

Option C) 0.57

Step-by-step explanation:

We are given the following in the question:

Average, = 260 calories

Standard deviation, = 35 calories

= 240 calories.

We have to find the Cohen's d effective size.

Formula:

Thus, the Cohen's d effective size is 0.57

Thus, the answer is

Option C) 0.57

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: