Answer:
B
Step-by-step explanation:
You don't even have to do complicated the math as the numbers are complicated for a reason. Round 1.99 to 2 and 1.83 to 1. and the answer is 5.4, which is closest to answer B.
Monica, Louis
and Berta work together
at IHOP, during the month of August.
Berta
worked 10 hours more than Monica.
Monica worked twice as many hours as <span>Louis.
All together they worked a total of 90 hours.
How many hours did each person work?
Louis worked 16 hours, Monica worked 32 hours
and Berta worked 42 hours.
</span>
Answer:
(a) t = 1.6766
Step-by-step explanation:
n = 50
degree of freedom = n - 1 = 50 - 1 = 49
confidence level = 90%
The critical value corresponding to 90% confidence level and 49 degrees of freedom is obtained by interpolating between 48 and 50 degrees of freedom (df)
Let the critical value at 49 df be y
dof. critical value
48. 1.677
49. y
50. 1.676
(49 - 48)/(50 - 48) = (y - 1.677)/(1.676 - 1.677)
0.5 × -1×10^-3 = y - 1.677
y - 1.677 = -5×10^-4
y = -5×10^-4 + 1.677 = 1.6765
The closest option is (a)
Step-by-step explanation:
So, the variable x can not represent adults and students because they tell us that 45 are clearly students.