Answer:
1 button.
Step-by-step explanation:
Total buttons = 40
Total red buttons = 6
Total Buttons removed =25
Buttons left = 40–25 = 15
Let the red buttons left = x
1.)Then, the probability of red buttons after removing 25 buttons = x/15 outcome / Total outcome)
2.)Probability of red buttons in the bag after removing 25 buttons is 1/3 (As given in the question)
Comparing Statement 1.) & 2.) , We get
x/15 = 1/3
x = 5
So the red buttons left = 5
Total red buttons= 6
Red buttons removed = 6–5= 1
Hence, only 1 button was red in the 25 removed buttons
z statistic or z score can be calculated using the
following formula:
z = (x – u) / (σ / sqrt n)
So simply substitute the given values:
z = (120.4 – 115) / (30 / sqrt 25)
z = 0.90
Answer:
<span>b. 0.90</span>
Answer:
0.0344827586206
you can shorten however
Step-by-step explanation:
Answer:
The answer is x=3 and y=5
Step-by-step explanation:
Step: Solve 2x+y = 11 for y
2x+y=11
2x+y+−2x=11+−2x (Add -2x to both sides)
y=−2x+11
Step: Substitute −2x+11 for y in 4x−3y = −3
4x−3y = −3
4x−3(−2x+11) = −3
10x−33 = −3 (Simplify both sides of the equation)
10x−33+33 = −3+33 (Add 33 to both sides)
10x=30
= 
(Divide both sides by 10)
x=3
Step: Substitute 3 for x in y = −2x+11
y=−2x+11
y=(−2)(3)+11
y=5 (Simplify both sides of the equation)
Answer:
x=3 and y=5
You did not put the histogram here, so I am not able to help :c
