1.75 because 42 divided by 4 is 10.5 and 10.5 divided by 6 is 1.75 i might be wrong but i tried
Answer:
Step-by-step explanation:
n = 400
Proportion p = 229/400= 0.5725
For 95% confidence interval we use Z value as 1.96
Std error = 0.025
margin of error = 1.96*0.025
Confidence interval 95% = 0.5725±Margin of error
= (0.524, 0.621)
b) When smiled x becomes 277
p = 0.6925
Std error = 0.023
Margin of error= 1.96*0.023
Confidence interval = (0.647, 0.738)
Smiling increases the chances of stopping since mean and conidence interval bounds are showing increasing trend.
Answer:
Step-by-step explanation:
round 59.6487 to 2 decimal places=
59.65
Answer:
x *2 + (28-x)*4 = 100
Step-by-step explanation:
Given
Total number of questions in the paper = 28
Out of these 28 questions let us say that x number of questions are of 2 points and 28-x questions are of 4 points.
Also, the complete test is of 100 marks
Thus, the linear equation representing the
x *2 + (28-x)*4 = 100
Answer:
The ratio of the number of rotten apples to the total number of apples is 6:35
The ratio of the number of good apples to the number of rotten apples is 35:6
Step-by-step explanation:
If you look at the wording the orders are switched.
Rotten apples: Good apples
Good apples: Rotten apples
