Presentation is loading. Please wait.

Presentation is loading. Please wait.

L.O. Use the standard normal distribution HeightFrequency 140-1451 145-1502 150-1555 155-1606 160-1658 165-1707 170-1754 175-1803 What do you notice? What´s.

Similar presentations


Presentation on theme: "L.O. Use the standard normal distribution HeightFrequency 140-1451 145-1502 150-1555 155-1606 160-1658 165-1707 170-1754 175-1803 What do you notice? What´s."— Presentation transcript:

1 L.O. Use the standard normal distribution HeightFrequency What do you notice? What´s the problem with this chart?

2 L.O. Use the standard normal distribution HeightFrequency

3 L.O. Use the standard normal distribution HeightFrequency

4 L.O. Use the standard normal distribution HeightFrequency mean 162

5 L.O. Use the standard normal distribution mean 162 Which area of the graph represents the people less than 162cm?

6 L.O. Use the standard normal distribution mean 150 Which area of the graph represents the people less than 150cm? How could we use that to find the people more than 150cm?

7 L.O. Use the standard normal distribution There is a standard normal distribution, such that the mean = 0 and the standard deviation = 1. 0 We can convert any other distribution to the standard one. For now, we´ll practise using the standard normal distribution, which we call ´Z´

8 L.O. Use the standard normal distribution Formula for P(Z < x) Again, life is too short. We look up values in a table.

9 L.O. Use the standard normal distribution

10 e.g. find P(Z 1.2) 0 0

11 L.O. Use the standard normal distribution e.g. find P(Z 1.2) 0 0

12 L.O. Use the standard normal distribution e.g. find P(Z -1.2) 0 0


Download ppt "L.O. Use the standard normal distribution HeightFrequency 140-1451 145-1502 150-1555 155-1606 160-1658 165-1707 170-1754 175-1803 What do you notice? What´s."

Similar presentations


Ads by Google