Find the area under the standard normal curve to the right of z = -1.25.
To find the area under the standard normal curve to the right of z = -1.25, we can use a standard normal distribution table or a statistical calculator.
Here's how to find the area using a standard normal distribution table:
1. Start by drawing a standard normal distribution curve. It is a bell-shaped curve with a mean of 0 and a standard deviation of 1.
2. Locate the z-value on the horizontal axis of the curve. In this case, the z-value is -1.25.
3. Look up the corresponding area in the standard normal distribution table. The table will provide the area to the left of the z-value. Since we want the area to the right of -1.25, subtract the table value from 1.
Using the table, for z = -1.25, you will find a probability value of 0.1056. This represents the area to the left of -1.25. To find the area to the right, subtract 0.1056 from 1:
Area to the right of z = -1.25 = 1 - 0.1056 = 0.8944
Therefore, the area under the standard normal curve to the right of z = -1.25 is approximately 0.8944.
Bobo ka
From the standard normal table find the probability value for Z=1.25, We know that the normal distribution is symmetric and hence area from 0 to 1.25 and area from -1.25 is the same. For the area to the right of -1.25 we add 0.5, which is the right symmetry to the area which we got from the tables and that is your answer.
Look in the back of your statistics text for a table labeled something like "areas under the normal distribution." Since you want the values higher than Z = -1.25, use the value in the larger portion.
I hope this helps.