Juanita has a bag of marbles. Without looking, she removes one marble, notes the color and replaces it. She repeats this process
1 answer:
Given table:
color ----- Frequency
Red ------ 14
Green ----- 19
Blue -------- 21
Yellow ----- 16
Number of process repeated (trials) = 70 times
Probability (event) = number of times the event occurs / total number of trials
From the table we can see that the number of times she pick the blue marble is 21
Probability of picking a blue marble on next try = =
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<u>Answer:</u>
The effort is required to raise bucket of water from the bottom of a well is 200N
<u>Explanation : </u>
Radius of the larger wheel = 40cm
Radius of the axle = 10cm
Mass of the bucket of water= 50N
Now,
According to the gravitational formula
Force = mgR
Due to constant acceleration g has no value
M is the mass of the bucket of water
R is the radius of the larger wheel/radius of the axle
=
=4cm
Substituting the values in mgR
= 504
=200N
Hence, 200N of force is required to raise it.