Question

The table below gives the typical number of days of rainfall in Spring and Fall in Death Valley, California.

Spring (Event S)

Fall (Event F)

Rain (Event R) 7 6
No Rain or Dry (Event D) 115 116

On average, what is the approximate percent chance of rainfall on a given day in Spring or Fall in Death Valley.
Show your work.

Answer 1

5.3% is the answer i believe

13 divided by the total number of days (246) which you get by adding 7,6,115 and 116 together = 0.52something which rounds to 5.3

Explanation:

Answer 2

5.327%

In this question, you asked the probability of "rain" in either "Spring" or "Fall". Since the condition for the time is 2, you need to sum the event. The total event of rain would be 7+6= 13. The total event of no rain would be 115+116= 231

The chance of rain would be: 13/ (231+13) *100% = 5.327%

Explanation: