At first situation, ratio = x/y = 1/5
5x = y -------Equation (i)
Now, after adding 5 more red, it is = x + 5 / y+5 = 1/3
y+5 = 3(x + 5)
y + 5 = 3x + 15
y - 3x = 15 - 5
Substitute the value of y from equation (1),
5x - 3x = 15 - 5
2x = 10
x = 10/2
x = 5
Originally, There were 5 red marbles in the bag
Hope this helps!
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Answer:
A)The favorite colors of students in a kindergarten class
B)The heights of tomato plants that were all planted on the same day
E)The parental guidance ratings (G, PG, PG-13, R) of movies filmed in 2019
Step-by-step explanation:
A normal distribution is defined as a bell-shaped distribution curve were most values of the data seem to cluster around the mean.Data for intelligence, height , blood pressure, students reports, shoe sizes, birth weight, income of citizens, technical stock market, rolling a dice, tossing a coin e.t.c are examples of situations that will give data which can be modeled by a normal distribution.In this case, the central limit theory applies, where various independent factors will influence a specific trait.
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