Distribution of a Variable follows a Normal Distribution - Mathematics Assignment Help

Assignment Task :

Math:
Question 1: You have the following data points. If you wanted to make a histogram with this data, what would be the minimum number of classes that you would choose.

Calculate the minimum number of classes that you would use.

Question 2: The average number of texts that you receive in an hour is 3. Calculate the probability that you receive more than 30 texts in the next 8 hours.

Question 3: The distribution of a variable follows a normal distribution with a mean of 110 and a standard deviation of 6. Calculate the value for which 80% of observations will fall above that value.

Question 4: You want to test if the proportion of students in Business who drink coffee in the morning is different than the proportion of Nursing students who drink coffee in the morning. If you want to run the test at a significance level of 10%, calculate the critical value that you would use.

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