Answer:
<u>168 </u>members are on the marching band but not part of the percussion.
Step-by-step explanation:
Given:
The high school marching band has 196 members,and 28 of them are a part of the percussion.
Now, to find the members on the marching band but not part of the percussion.
Total members of marching band = 196.
Members of them who part of percussion = 28.
So, to get the members of the marching band who are not the part of the percussion we subtract members of them who part of percussion from total members of marching band:
Therefore, 168 members are on the marching band but not part of the percussion.
Answer:
0.0228
Step-by-step explanation:
Given that:
mean (μ) = 75, Standard deviation (σ) = 3.5
The z score is a score used in statistics to measure by how many standard deviations the raw score is above or below the mean. If the z score is positive, it means that the raw sore is above the mean and if the z score is negative then the raw score is below the mean. The z score is given by:
For x > 76 and a sample (n) = 49:
From the normal distribution table, the probability that the average score of the 49 players exceeded 76 = P(x > 76) = P(z > 2) = 1 - P(z < 2) = 1 - 0.9772 = 0.0228