test your spelling skills

Identify the word that spells 92. => Eighty-two or Forty-two or Seventy-two or Ninety-two..

Suppose three students A, B and C measure the volume of the liquid in a cylinder. They report the following values: Result of A: 23.4 mL; Result of B= 23.5 mL; Result of C= 23.6 mL If the correct volume of the liquid is 23.5 mL, it means that the student B has measured the volume of the liquid cor..

A teacher wants 5 of her 15 students to write a skill test. In how many ways can she select 5 students? => 3008 or 2998 or 3013 or 3003..

A random sample of 81 students was tested for the problem solving approach skills. The variance of the scores obtained from the sample was found to be 144. Find the 80% confidence interval for the variance and standard deviation. Assume that the variable is normally distributed...

A seminar is given to the students of five classes of a school on the importance of communication skills. The number of students of each class who attended the communication skills development classes before and after attending the seminar are listed in the table. At 95% confide..

A school enrolls students based on their performance in the written test and communication skill test. Each test has a maximum score of 75. The graph shows the inequalities that tells the status of a candidate: For admission x + y ≥ 50 For scholarship 4 x ..

A test on English was conducted on 20 students. Number of words misspelled by them are : 10 15 4 8 19 6 2 10 17 3 1 16 9 5 14 13 15 6 9 12 At α = 0.05, is there enough evidence for the teacher to conclude that the standard deviation of the number of words spelled incorrect..

A school enrolls students based on their performance in the written test and communication skill test. Each test has a maximum score of 75. The following formulae are used. For admission x + y ≥ 50 For scholarship 4 x + 5 y ≥ 300 For accommodation + foo..

Introduction - This tests the student's skill in detecting mistakes. Having acquired comprehensive knowledge of English grammar, he should be able to apply his skills effectively in the following exercise..

Man has the skill of communication by which he is able to convince others about his point of view. Today graphics, tables, reasoning, estimation and prediction are playing a very important role in stating the facts in terms of figur..