Q2 – For the data in table (1): / 1- Draw the frequency distribution diagram. 2 - Find the class mark. 3 – Find the variance. 4 - Find the standard deviation. Table (1) Class Frequency (f) 60 – 62 5 63 – 65 18 66 - 68 42 69 – 71 27 72 - 74

Using Gaussian curve. Find the probability of -+1 and -+3.

Variance

Probability and Non-Probability: Fill in the blanks. No need explanation 1. _____ also called "chain-referral sampling" The samples have the traits that are rare to find. 2.In _____ sampling, the researcher is the one who choose who to participate based on the need of the study.  3. ______ sampling is used when the population or geographical area of the research is so large. 4. In _____ sampling, there is no assurance that each item/person has a chance of being selected as a sample.

Activity 6: Giving Examples Directions: List down at least three (3) examples of Random and Systematic Random: 1. 2. 3. Systematic: 1. errors. 2. 3. Directions: Using a Venn diagram compare and contrast Systematic and Random Errors o

Statistics and Probability

resulting statistic is an example of a

Omar

statistic  answer please

Probability of a Run of Four Use a simulation approach to find the probability that when six consecutive babies are born, there is a run of at least four babies of the same sex. Describe the simulation procedure used, and determine whether such runs are unlikely.