Answer:
$17.00
Step-by-step explanation:
10 x 1.70 = $17.00
(x+3)(x+6) = x² + 6x + 3x + 18 = x² + 9x + 18
Answer:
Not reasonable.
Step-by-step explanation:
Hello!
You have two samples from normally distributed variables. Let's say:
Sample 1
X[bar]₁= 485.6
S₁= 44.3
n₁= 49
Sample 2
X[bar]₂= 390.1
S₂= 61.3
n₂= 31
A Student-t distribution is graphically almost identical to a normal distribution. This distribution is defined as:
Where Z is variable with normal distribution and V is a variable with chi-square distribution and Z and V are independent variables.
This is the reason why the distribution looks so much like a normal distribution and, as the sample sizes grow, it tends to be identical to the normal distribution.
Depending on the criteria of the statistics course you are taking, it is the sample size from which you stop choosing to use the student's t and you start using the normal distribution. In general, with n greater than 20 or 30 the normal approximation is already used.
Applying these criteria, since n₁ and n₂ are bigger than 30 I wouldn't recommend using the pooled t-test.
I hope it helps!
Ayden bought 4 oranges.
Explanation:
4.20 divided by 6 will give you 0.7
0.7 times 4 gives you 2.8
If you look at the question, You would see a pattern. That pattern is the amount of slices in one week is divided by 2 the next week. So on the fourth week you would do 320/2 and get 160. if you keep carrying on the pattern yourself, you would do: 160/2 = 80. 80/2 = 40. And there's your answer. week 4 we had 160 slices sold. week 5 80 slices sold. Week 6 40 slices sold
Simplify this into your own words if you have to