Answer:
its four times larger
Step-by-step explanation:got it right on the test
Answer:
2
Step-by-step explanation:
Answer:
81.82%
Step-by-step explanation:
First we need to convert the X score to Z score using the formula;
Z = X-µ/σ
If X = 225.76
Z = 225.76-256.43/27.11
Z = -30.67/27.11
Z = -1.1313
Similarly if X = 300.35
Z = 300.35-256.43/27.11
Z = 43.92/27.11
Z = 1.6201
Hence the required z score is P(-1.1313 ≤ Z ≤ 1.6201)
Checking the normal distribution table;
P( Z ≤ 1.6201) = 0.9474 = 94.74%
P(Z ≤ -1.1313) = 0.1292 = 12.92%
P(-1.1313 ≤ Z ≤ 1.6201) = 94.74 - 12.92
P(-1.1313 ≤ Z ≤ 1.6201) = 81.82%
In order to determine the probability that the coin chosen is a dime, determine first the total number of sample coins. In this problem, there are 52 coins all in all. Next, divide the number of dimes in the sample with the total number of coins. This gives us 10/52. Simplifying the fraction further yields to 5/26. Thus, the probability that the coin chosen is dime is 5/26. The answer is letter c.