The table above summarizes the number of people by age group who were included in a survey of driving habits. Which of the following statements is true?

The number of people in the age group 10-15 who reads only one type of magazine, is

An element X belongs to fourth period and fifteenth group of the periodic table. Which of the following statements is true-

Which of the following statements are true for group 2 elements?

Astatine is the element below iodine in the group VIIA of the periodic table. Which of the following statements is not true for astatine?

Astatine is the element below iodine in the group VIIA of the periodic table. Which of the following statements is not true for astatine?

The table above shows the distribution of the number of push ups completed by 30 people in a high school gym class. Which of the following is true the mean, mode, and the range of the numbers of push ups completed?