A researcher wants to determine the average height of all adults in a country. They randomly selected 500 adults from different regions and measured their heights.Which of the following is the population?Group of answer choicesThe 500 adults who were selected and measured for their heights.All adults in the country.A researcher wants to determine the average heightThey randomly selected 500 adults

A researcher wants to estimate the average height of women aged 20 years and above. From a simple random sample of 45 women, the researcher obtained a sample mean height of 63.9 inches.Identify the parameter and the statistic.*2 pointsThe parameter is the average height of the 45 women in the sample.The parameter is the average height of all women aged 20 years and above.Both of the average heights are parametersNo parameters are given.

he average height of 5 students is 1.45 m. If one student left the group,the averageheight of the remaining four of them is 1.44 m. What was the height of the student who left.

Describe the type of statistics used in the given statement below. A teacher wants to find out the average height of students in their class. They measure the height of each student and calculate the mean height.Group of answer choicesQualitativeQuantitativeInferentialDescriptive

The coefficient of variation of the height of 20 people selected at random from a given city is found to be 15%. The weight of this group of people has a mean value 72 kg and a standard deviation 8 kg. The coefficient of variation for the weight of the selected group isSelect one:a.20b.8.33%c.11.11%d.8.33

Two hundred patients who had either hip surgery or knee surgery were asked whether they were satisfied or dissatisfied regarding the result of their surgery. Out of the 95 that had knee surgery, 70 were satisfied. Out of the 105 that had hip surgery, 15 were dissatisfied. If one person from the 200 patients is selected at random, what is the probability that the person had knee surgery?Question 4Select one:a.5/19b.21/40c.7/20d.19/40