First do 54x5 which is equal to 270. then, you move the decimal point to the left 3 times; 2 for the .54 and 1 for the .5. you will then get 0.27 which is ur answer
1. 30/20 =150%
2. 26/20 = 130%
Answer:
No, because z-statistics lies within the critical region.
Step-by-step explanation:
The z value is calculated to determine whether the null hypothesis should be accepted or rejected. The null hypothesis is rejected when the z-value lies outside the critical region. The critical region is determined by the sample data.
Answer: 
Step-by-step explanation:
Given
There are 8 red and 4 blue beads
Three beads were taken from the box
(i)No of ways of choosing three red beads out of 12 beads is 
Total no of ways 
Probability is

(ii)atleast two beads refers to minimum two beads
There can be two possibilities (2B,1 R), (3B, 0R)
