Answer:
x = 83.7 units
Step-by-step explanation:
- given adjacent: 56, given angle: 48°, asked to find hypotenuse, x?
Using cosine rule:
→ adjacent/hypotenuse = cos(∅)
→ 56/hypotenuse = cos(48)
→ hypotenuse = 56/cos(48)
→ hypotenuse = 83.7 units
The experimental probability of a certain event is the proability for that event to happen, "suggested" by some empiric experiments, instead of pure theory.
For example, we know that a fair coin has a 50% chance of landing on heads or tails. But if you throw a coin 100 times, with 60 heads and 40 tails, you would say that the probability for heads to show is 60%.
In your exercise, Jenny tried the experiment 50 times, and got a pink tile 18 times. So, according to her results, the probability of pulling a pink tile is

The t-distribution has n - 1 degrees of freedom, where n is the sample size.
In this case n = 20. So the required number of degrees of freedom is:
20 - 1 = 19.
The answer is: 19 degrees of freedom.
Answer:c.texture
Step-by-step explanation:
One essential feature of the normal distribution is that its graph is SYMMETRIC