Answer:
D
Step-by-step explanation:
The mean of a standard normal distribution is always = 0 with the standard deviation being equal to. Therefore a standard normal distribution is a normal distribution described with a mean of 0 and standard deviation of 1. Since a standard normal distribution is centered at the middle with equal distribution to both the left and right of the distribution. The centre point is 0, which is the mean and the standard deviation is 1 to either side of the distribution.
Answer:
8 apples
Step-by-step explanation:
There are 3 apples with a mass of 39 grams, 2 apples with a mass of 40 grams, 1 apple with a mass of 41 grams, and 1 apple with a mass of 43, and lastly one apple with a mas of 44 grams.
If there is 30 acres and it was completed in 10 days they completed 3 acres per day. meaning each worker completed 3/24 or 1/8 acres per day. therefore if they have 45 acres and 12 days they need to complete 3.75 acres per day. if each worker completes 1/8 per day then it will take 30 workers to complete the whole site. as it asks for how many extra workers the answer would be 6.