Answer:
(a)1 out of 4.
(b)27%
(c)0.73 or 73%
Step-by-step explanation:
Tommy’s probability of winning is given as 0.27.
(a)Ratio Form
Therefore, the probability that Tommy will win is <u>1 out of 4.</u>
(b)Exact Percent Value
Multiply the probability by 100 to obtain the exact percent value.
0.27 X 100=27%
(c)Probability that Tommy will not win.
Probability that Tommy will win+Probability that Tommy will not win=1
0.27+Probability that Tommy will not win=1
Probability that Tommy will not win=1-0.27
Probability that Tommy will not win=0.73
You can do this by cross multiplying
Answer:
b) Chemistry
Step-by-step explanation:
To compare both scored we need to standardize the scores using the following equation:
Where x is the score, m is the mean and s is the standard deviation. So, 82 on chemistry is equivalent to:
Because the mean of the scores on the chemistry final exam is equal to 75 and the standard deviation is 15
At the same way, 80 on Calculus is equivalent to:
Because the mean of the scores on the calculus final exam is equal to 83 and the standard deviation is 13
Now, we can compare the values. So, taking into account that -0.2308 is lower than 0.4667, we can said that the student do better in Chemistry.
