Refers to the number of observations belonging to a class interval O class frequency O class limits O class boundary O class size The difference between two successive lower and upper limits O class mark O class size O class interval O class frequencyThe difference between histogram and a frequency polygon is that the histogram employs bar whereas the midpoints are connected by lines for a frequency polygon. Select one: O True O False Relative frequency distributions are developed by dividing each class frequency by the corresponding class mark. Select one: True O FalseThe researcher is making a study of the tuition fee of the colleges and universities. There are 123 colleges and universities in the study. How many classes would you recommend? 0 8 0 6 0 5 0 7 Rainfalls occur randomly and independently over the course of Metro manila. The average is 6 rainfalls every month. What is the probability of at most one rainfall in a month? 0 0.170 0 0.017 O 0.025 0 0.015What is P(n,n)? 0 1 0 0 On! on If two cards are selected from a standard deck of 52 cards without replacement, find the probability that both are clubs O 3/4 O 1/2 O 33/68 O 1/17