Please show me the calculations. Thank you in advance

1. A quantitative distribution with 126 values has a minimum of 36 and a maximum of 88. To create a quantitative frequency distribution from these values, there would be ___________ classes.

2. Daily wind speed along a portion of the shore of echo beach forms a bell-shaped distribution with a mean of 20 km/hr and a standard deviation of 5km/hr. Apply the Empirical Rule estimate what 95% of the daily wind speeds in this area would be. Four Choices are below:

• Less than 5km/hr or Between 10km/hr and 30 km/hr
• less than 20km/hr or Between 5km/hr and 35km/hr

3. Jang has a part-time job that involves walking dogs for people who are too busy to take out their pets. Currently, he has four (4) dogs whose weights are 46.80, 7.70, 14.50, and 22.20. The mean weight of the dogs is ________ and the standard deviation is ___________.

4. A frequency distribution has three classes: 10 up to 20, 20 up to 30, 30 up to 40. The smallest value in the list of observations has to be greater than or equal to 10 otherwise the distribution will violate the principle of ______. Four Choices are below:

• A smaller value than 10 does not violate any distribution principle
• mutually exclusive or collectively exhaustive
• Inclusive

5. The distribution of employee performance on a specific task forms a symmetrical bell-shaped curve with a mean of 340 minutes and a standard deviation of 40 minutes. Using the Empirical Rule estimate what proportion of the employees performed the task in a time between 300 min and 380 min.

6. The set of values in a continuous variable can always be_______. Four Choices are below:

• Measured or Listed
• Counted or Itemized