1 / 8

7.3 and 7.4 Extra Practice

THIS REVIEW IS ON MY TEACHER WEB PAGE!!!. 7.3 and 7.4 Extra Practice. 7.3-7.4 Quiz: TOMORROW. Section 7.3. Find the mean, median, and mode of the data set 12, 15, 17, 11, 8, 14, 7, 14 x = 12.25, Median = 13, Mode = 14 0.3, 8.9, 7.6, 3.7, 1.5, 4.2, 7.6, 8.1

rose-hudson
Download Presentation

7.3 and 7.4 Extra Practice

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. THIS REVIEW IS ON MY TEACHER WEB PAGE!!! 7.3 and 7.4Extra Practice 7.3-7.4 Quiz: TOMORROW

  2. Section 7.3 • Find the mean, median, and mode of the data set • 12, 15, 17, 11, 8, 14, 7, 14 x = 12.25, Median = 13, Mode = 14 • 0.3, 8.9, 7.6, 3.7, 1.5, 4.2, 7.6, 8.1 x = 5.2375, Median = 5.9, Mode = 7.6

  3. Section 7.3 • Find the range and standard deviation of the data set. • 1.25, 3.69, 5.67, 4.89, 0.12, 4.35, 2.78 Range = 5.55, Standard Deviation = about 1.8 • 515, 720, 635, 895, 585, 690, 770, 840 Range = 380, Standard Deviation = about 119.6

  4. Standard Deviation

  5. Section 7.4 • A normal distribution has a mean x and standard deviation σ. Find the indicated probability for a randomly selected x-value from the distribution. • P(x < x + 2σ) 97.5% • P(x > x – σ) 84% • P( x - 3σ< x < x +σ) 83.85%

  6. Section 7.4 • Give the percent of the area under the normal curve represented by the shaded region. 2.5% 50%

  7. Section 7.4 • A normal distribution has a mean of 63.7 and a standard deviation of 2.9. Find the probability that a randomly selected x-value from the distribution is in the given interval. • Between 57.9 and 66.6 81.5% • At most 69.5 97.5%

  8. Section 7.4 • A normal distribution has a mean of 496 and a standard deviation of 109. Use the standard normal table on p. 296 to find the indicated probability for a randomly selected x-value from the distribution. • P(x < 630) .8849 88.49% • P(x < 270) .0179 1.79%

More Related