Answer:
x=10
Step-by-step explanation:
18x=180
x=10
if my answer helps please mark as brainliest.
Answer:
The range is the difference between the biggest and smaller values of a set. The median is the middle value of a set. So we cannot say were the lowest score was found, comparing the median and ranges, because it could be that some repeated value very low or high is biasing the median, we could do it with the mean perhaps. So the proposal is false.
Answer:
Step-by-step explanation:
Hypothesis test about a population mean is done to evaluate two exclusive statements about a population in order to determine which is best supported by the sample data.
From the situations given, the correct options are
b. A recent study estimated that 20% of all college students in the United States smoke. The head of Health Services at Goodheart University suspects that the proportion of smokers may be lower there. This would require taking a sample and determining the probability of success.
c. A certain prescription allergy medicine is suppose to contain an average of 245 parts per million (ppm) of active ingredient. The manufacturer wants to check whether the mean concentration in a large shipment of pills is 245 ppm or not.
d. A report on the College Board website stated that in 2003 males scored generally higher than females on the SAT exam. An educational researcher wants to check whether this is true in her school district.
Answer:
188.571
if you did directly answer may differ
Step-by-step explanation:
you can see it from the picture above
Answer:
1. .26
2. .29
3. .22
4. .23
Step-by-step explanation:
3.1 ÷ 12 = .26
2.92 ÷ 10 = .29
3.52 ÷ 16 = .22
1.85 ÷ 8 = .23
<em>good luck, i hope this helps :)</em>
