Answer:The alternative hypothesis is that the mean speed of drivers on this highway is less than 65 mph.
Step-by-step explanation:
i hope this helps and I'm sorry if this is wrong.
Answer:
b) 0.0007
c) 0.4163
d) 0.2375
Step-by-step explanation:
We are given the following:
We treat securities lose value as a success.
P(Security lose value) = 70% = 0.7
Then the securities lose value follows a binomial distribution, where
where n is the total number of observations, x is the number of success, p is the probability of success.
Now, we are given n = 20.
a) Assumptions
- There are 20 independent trials.
- Each trial have two possible outcome: security loose value or security does not lose value.
- The probability for success of each trial is same, p = 0.7
b) P(all 20 securities lose value)
We have to evaluate:
0.0007 is the probability that all 20 securities lose value.
c) P(at least 15 of them lose value.)
d) P(less than 5 of them gain value.)
P(gain value) = 1 - 0.7 = 0.3
Answer:
I think it’s A,C, and E
Step-by-step explanation:
I’m not for sure but if you plot those points in the shaded region for graph C, those should be correct .
A tessellation that uses only one type of regular polygon.
<h3>
What is Polygon?</h3>
The definition of a polygon is given as a closed two-dimensional figure with three or more straight lines.
When we cover a surface with a pattern of a flat geometric shapes such that there should have no overlaps or gaps, then the surface is called a tessellation.
A regular tessellation is tessellation made up by using only one type of regular polygon. These are made up of entirely congruent regular polygons all that joining vertex to vertex.
Hence, A is the correct option.
Learn more about Polygon from:
brainly.com/question/10441863
#SPJ1
Answer:
25,000 grams
Step-by-step explanation:
Density can be found using the following formula:

If we rearrange the formula for
, mass, we will multiply both sides of the equation by v.


The mass can be found by multiplying the density by the volume.
Jeff's density is 1000 grams per milliliter and his volume is 25 milliliters.

Substitute the values into the formula.


Multiply. When you multiply, the "mL" or milliliters will cancel out.


Jeff's mass is 25,000 grams.