Given:
Here we have z=1.3 and z=3.
Required:
We need to find percentage of data items in a normal distribution that lie between z=1.3 and z=3.
Step-by-step explanation:
We have z=1.3 and the percentage of z=1.3 is 90.32 % and percentage of z=3 is 99.87 %
now to find between these two values we just need subtract both values
Final Answer:
9.55 %