Answer:
(a) 2.5%
(b) 84%
Step-by-step explanation:
Applying the empirical rule,
68% arrive within 7:22 am +/- 4 minutes (7:18 am to 7:26 am)
95% arrive within 7:22 am +/- 8 minutes (7:14 am to 7:30 am)
99.7% arrive within 7:22 am +/- 12 minutes (7:10 am to 7:34 am)
(a) Those that arrive late arrive after 7:30 am. Half of all employees (50%) arrive after 7:22 am.
Since the arrival time is symmetric, half of those that arrive between 7:14 am and 7:30 am (95%) arrive between 7:22 am and 7:30 am.
This means 95% ÷ 2 = 47.5% arrive before 7:30 am.
The late arrivals = 50% - 47.5% = 2.5%
(b) Those who come early to make the adjustment come 4 minutes before 7:30 am = 7:26 am.
50% come before 7:22 am.
Since the arrival time is symmetric, half of those that arrive between 7:18 am and 7:26 am (68%) arrive between 7:22 am and 7:26 am. This means 68% ÷ 2 = 34% arrive between 7:22 am and 7:26 am.
The percentage that arrive before 7:26 am = 50% + 34% = 84%.
B. 0.5 or 50%
The answer would be B because there are 10 possible colors of marbles and an equal amount of them in the bag, you want to know the probability of picking five of the ten possible colors which is 50% of the total marble colors.
Hope this helped! (Brainliest would be nice only if you think i deserve it)
These 2 angles are vertical angles.
Vertical angles are equal.
Set up an equation where 2 angles are equal to each other.
Solve for 'x'.
6x+238 = 3x + 178
3x = 178 - 238 = -60
x = -60/3
x = -20
Answer:
110 is the correct answer...
The probablility is 4.89%
