Answer:
no hacerlo yo mismo
Step-by-step explanation:
Answer: Domain of the function represented in the graph is given by he inequality . 2 <_ x _< 10
Step-by-step explanation:
we know that
Observing the graph
The domain is the quantity of yellow paint in millimeters
The domain is the interval -----> [2,10]
All real numbers greater than or equal to 2 and less than or equal to 10
therefore 2 <_ x _< 10
my bad I couldn't put the line under the sign
Step-by-step explanation:
hgshdhshsshs
The answers to the questions
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
