the university authorities wants to analyse the relationship between the student's score in a mathematics examination ( )

The university authorities wants to analyse the relationship between the student's score in a mathematics examination ( y ), age ( x 1 ) and score in statistics examination ( x 2 ). Determi..

The university authorities wanted to estimate the average age of the students in their university by taking a random sample of 25 students. The standard deviation was found to be 3 years. Find the 95% confidence interval for the variance (..

A teacher wanted to know the relation between the midterm scores and final scores. She has randomly selected ten students and their respective scores as shown. Calculate the correlation coefficient and describe the relationship. Stude..

A teacher decides to examine the hypothesis between the test scores and the overall grade point average for each student for the whole year. Find t test value and test the significance of the correlation coefficient using the P-value method. r = 0.43, ∝ = 0.02, n ..

The average score of students in statistics examination is 90, with a variance of 4. The average score of students in algebra examination is 102, with a variance of 7. Which course is more variable in terms of scores? => algebra ..

The points scored by students in an examination is given in the line plot. Find the total number of students. => 41 or 27 or 19 or 21..

A school teacher estimated that 80% of the students can score grade A in the final test. He selected a random sample of 140 students after the final examination and observed that 115 students scored grade A. At α = 0.01, find the tes..

A teacher claims that the variance of the final examination scores in her class is larger for male students than for the female students. The data from the final exam for the last semester reveals that the standard deviation of the scores for 30 mal..

Find the z scores of three students who had a score of 93, 80, 84 in an examination for a pre-medicine course which has a mean of 84 and a standard deviation of 4. => 9, - 4, 0 or 23.25, 20, 21 or 2.25, - 1, 0 or - 2.25, 1, 0..

Construct a pie graph for the points scored by a student in final examination representing the percentage of scores in each subject. Subject Score English 82.5 Math 105 Science 120 French 135 History 97.5 => Graph 3 or Graph 4 or Graph 2 o..