Answer:
He will need 1/8 of sand to fill the cup
Step-by-step explanation:
For 1/2 i filled half of the cup for 1/3 i made new cup split it in 3 and added it in main cup then for 1/8 made a new cup split it in 8 and added it to main cup the test is sand.
2 + 3 - 4 + ( 5 . 4 ) = 5 - 4 + 20 = 1 + 20 = 21
Answer:
Hence the probability that 1 pair of red socks and 1 black skirt are chosen at random is .
Step-by-step explanation:
Let A denotes the event that 1 pair of red socks are chosen.
Let B denote the event that a 1 black skirt is chosen.
let P denotes the probability of an event. ( Probability of an event is defined as the ratio of Number of favourable outcomes over the total number of outcomes)
and
Hence, the probability that 1 pair of red socks and 1 black skirt are chosen at random i.e. is given by:
(since the events are independent)
Hence,
Answer: 31%
Step-by-step explanation:
Formula : Percent of the variability =
, where = Coefficient of Determination.
SSR = sum of squares of regression
SST = total sum of squares
is the proportion of the variation of Y that can be attributed to the variation of x.
As per given , we have
SSR = 14.55
SST= 46.8
Then, the percent of the variability in y that can be explained by variability in the regression model =
Hence, the percent of the variability in y that can be explained by variability in the regression model = 31%