A student has to take two quizzes tomorrow. He has only enough time to study for one of them,
• The history quiz has 5 true-or-false questions.
• The science quiz has 4 multiple-choice questions.
The student calculates the probability that he will get all the questions correct
by guessing
To get 100% correct:
P(guess is correct)
History
0.5
Answer 5 of 5
correctly.
Science
0.2
Answer 4 of 4
correctly.
The student will study for the quiz on which he is likely to do worse by
guessing. Which quiz should he study for?
A. History, because he must get more questions correct.
B. Science, because the probability of getting all questions correct is
0.002, which is lower than for history (0.031).
C. History, because the probability of getting all questions correct is
0.031, which is lower than for science (0.8).
D. Science, because the probability of getting all questions correct is
0.08, which is lower than for history (0.25).

the answer is c)8

step-by-step explanaction:

"it's not the heat, it's the humidity".   that's a partly valid phrase you may have heard in the summer, but it's actually both.   the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature.   this has important considerations for the human body's comfort.   when the body gets too hot, it begins to perspire or sweat to cool itself off.   if the perspiration is not able to evaporate, the body cannot regulate its temperature.   evaporation is a cooling process.   when perspiration is evaporated off the body, it effectively reduces the body's temperature.   when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases.   in other words, the human body feels warmer in humid conditions.   the opposite is true when the relative humidity decreases because the rate of perspiration increases.   the body actually feels cooler in arid conditions.   there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

step-by-step explanation:

i'm sorry i don't know

step-by-step explanation:

the probability that a bird is green (.30) is true

step-by-step explanation: