Answer in a paper please

Frequency Distribution 1- The grades of a student on nine 100-point examinations were 76, 70, 65, 69, 85, 94, 62, 79, and 100. Find the Arithmetic Mean- Mode Median - Variation and Standard Deviation? 2- Find the arithmetic mean, median, and hence find the coefficient of skewness from the frequency table Class 15-25 25-30 35-45 45-55 55-65 Frequency 5 25 40 20 10 3- Calculate Pearson's correlation coefficient between x and y for the following table x25 1 3 4 1 5 24 28 22 26 25 24 26 4- Calculate the coefficient of rank correlation for the following data x 30 20 10 30 10 y0.90.80.5 1 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, find 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 C- 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, find the probability that four 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