Answer in a paper please

Frequency Distribution 1- The grades of a student on nine IUD-point examinations were 76, TO, 65, 69, 85, 94, 62, T9, and 100. Find the Arithmetic Mean- Mode Median Variation and Standard Deviation? 2- Find the arithmetic mean, median, and hence nd the coefficient of skewness from the frequency table Class [52525393544545-5555-65 Frequency 5 25 40 20 ll) 3- Calculate Pearson's correlation coefcient between 1: and y for the following table 12 5 l 3 4 l 5 )-'24232226252426 4- Calculate the coefcient of rank correlation for the following data x30 20 103010 y0.90.30.5 l 0.8 5 Suppose two balanced coins are tossed and the upper faces observed. Let A denotes the event that exactly one head is observed, and B the event that at least one head is observed, nd 6 A card is drawn at random from a regular deck of 52 cards, calculate the probability of each event a The ace of hearts is drawn b A spade is drawn e' A picture card (J, Q, K) is drawn d A card with a number less than 6 is drawn e- A card that is not an ace is drawn. 7- class contains 30 female and 25 male students. 15 students are selected at random one after the other with replacement. X represents the number of males. 8- A coin is tossed ten times, nd the probability thatfour heads will be obtained. A class contains 30 female and 25 male -9 students. 15 students are selected at random one after the other with replacement. Find the probability that the number of males is 5