Do male and female toddlers show a preference for certain colors? Researchers offer identical toys of four different colors to separate randomly selected samples of male and female children aged 15 to 20 months and
record which color toy is picked up first. Here are their results:
Color of first toy chosen
Red
Blue
Yellow
Green
TOTAL
Female 48
24
18
30
120
Male
55
34
9
18
116
TOTAL 103
58
27
44
236
Which of the following is the appropriate null hypothesis for this test?

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."

step-by-step explanation:

answer: a 45 rotation counterclockwise

step-by-step explanation:

answer: 2/13 chance i think ( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)