2000 is the correct answer hope this helps! :D
Conner played a total of 6 +3 + 6 = 15 games. He won or tied 6+ 3 = 9 games.
His percentage is 9/15 = 0.6 x 100 = 60%
April played 5+7+4 = 16 games and won or tied 5 +7 = 12 games.
Her percentage is: 12/16 = 0.75 x 100 = 75%
Tony played 20 games and won or tied 14.
His percentage is: 14/20 = 0.7 x 100 = 70%
April has the highest percentage so she is the one who should play.
Answer:
The 95% confidence interval for the proportion of students who get coaching on the SAT is (0.1232, 0.147).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the z-score that has a p-value of 
.
427 had paid for coaching courses and the remaining 2733 had not.
This means that 
95% confidence level
So 
, z is the value of Z that has a p-value of 
, so 
.
The lower limit of this interval is:
The upper limit of this interval is:
The 95% confidence interval for the proportion of students who get coaching on the SAT is (0.1232, 0.147).
Answer:
The second term of the binomial factor should be 3c instead of 3.
Step-by-step explanation:
Distributive property:
a*b + a*c = a*(b +c)
3b + 9c = 3*b + 3* 3 *c = 3*(b + 3c)
Answer:
60
Step-by-step explanation:
sum the parts of the ratio, 8 + 12 = 20 parts
Divide the total by 20 to find the value of one part of the ratio
100 ÷ 20 = 5 ← value of 1 part of the ratio , thus
8 parts = 8 × 5 = 40 ← number of purple bikes
