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Use the following scenario for questions 9a – 9c. A livestock company reports that the mean weight of a group of young steers is 1161 with a standard deviation of 74 pounds. Based on the model N(1161, 74) for the weights of steers, fill in the blank with the correct percentage. Show your work on at least one of the answers.

The sample IQR is: ___________.

Describe the gas mileage of the worst 2.5% of cars.

Upload Page 2 of any work here (optional) Take a picture of your handwritten work. Embed your picture by uploading the image from your phone to the computer (like email it to yourself or use Google drive) Click the “images” drop-down in the toolbar above and “upload image” Click the ‘rocket’ and find your image on your computer and embed the image. Careful! HEIC files will not be accepted (iPhone users), they will be counted as a zero.

The cutoff weight for the lowest 20% of steer weights is ______________ pounds.

__________% of steers have weights below 1300 pounds.

The relative frequency for the “Subcompact and mini” car type is:  _____________

People with z-scores of 2.5 or above on a certain aptitude test are sometimes classified as geniuses. If aptitude test scores have a mean of 100 and a standard deviation of 26 points, what is the minimum aptitude test score needed to be considered a genius? Show your work.   The minimum aptitude test score needed to be considered a genius is __________ points.

The cutoff for the middle 40% of the steer weights are ___________ and ___________ pounds. Explain how you obtained your answer.

The cutoff weight for the highest 10% of steer weights is ______________ pounds.