Answer:
1/20
Step-by-step explanation:
The only way it can equal 2 is if both spinners land on 1 because 1 + 1 = 2.
The probability of the 1st spinner landing on 1 is 1/4.
The Probability of the 2nd spinner landing on 1 is 1/5.
To find out the Probability of them landing together it would be 1/5 times 1/4 which equals 1/20.
To answer this question you would need to find the surface area of this rectangular prism. In order to find the surface area you would find the areas of all six faces. The top and bottom faces would both be square with an area of 5.29 (2.3x 2.3)ft.². All for lateral faces would have areas of 8.28 (2.3x3.6)ft.². Adding these for faces along with the other two faces would give you a total surface area of 43.7 ft.². If you take away the bottom face which is not painted you will have a surface area that is going to be painted of 38.41 ft.². To determine the percentage of this rectangle or prism that is going to be painted, create a ratio of the amount painted to the total amount surface area. Divide these to create a decimal and then converted to a percent. 38.41/43.7=0.879 (87.9%).
Answer:
24 tons
Step-by-step explanation:
Given that
and
, given that the population mean is
and the sample size is n = 16, the test statistic is given by
Since the test is a two tailed test, the p-value is 2(0.07493) = 0.14986
Since the p-value is greater the significant level of α = 0.01, thus, we fail to reject the null hypothesis and conclude that there is no sufficient evidence that <span>the percentage of wheat crop lost to hail in that county is different from the national mean of 11%</span>.