30% because 10 out of 10 is 100%.
So 3 out of 10 is 30%.
The Distributive Property<span> is an algebra </span>property<span> which is used to multiply a single term and two or more terms inside a set of parentheses. Take a look at the problem below. 2(3 + 6)</span>
Answer:
Yes
Step-by-step explanation:
(x,y)
Since all the domains (x) are different, this set of number is a function. In a function, the range (y), can repeat.
Answer:
1 1/8 or 9/8
Step-by-step explanation:
5 1/2-4 3/8= 1/ 1/8
Answer:
Approximately, the 90% confidence interval for the students' mean IQ score is between 129.045 - 130.956
Step-by-step explanation:
The formula to use to solve this question is called the Confidence Interval formula.
Confidence interval =
x ± z × ( σ/ (√n) )
Where:
x = the sample mean = 130
z = the z-value for 90% confidence = 1.645
σ = standard deviation = 7
n = sample size = 145
130 ± 1.645 × (7/√145)
130 ± 0.9562687005
130 - 0.9562687005 = 129.0437313
130 + 0.9562687005 = 130.9562687005
Therefore, approximately, the 90% confidence interval for the students' mean IQ score is between 129.045 - 130.956
