There are 318 teachers at a college. Among a sample of 115 teachers from this college, 67 have doctorates. Based on this sample,
1 answer:
Answer: or 0.5826
Step-by-step explanation:
Given : The total number of teachers in at a college = 318
In sample of n= 115 teachers from this college, the number of teachers with doctorates : x=67
Then, the sample proportion of teachers at this college with doctorates
Since the sample proportion is the best estimate of the population proportion.
Therefore , the estimated the population proportion of teachers at this college with doctorates =
You might be interested in
Answer:
3u - 2v + w = 69i + 19j.
8u - 6v = 184i + 60j.
7v - 4w = -128i + 62j.
u - 5w = -9i + 37j.
Step-by-step explanation:
Note that there are multiple ways to denote a vector. For example, vector u can be written either in bold typeface "u" or with an arrow above it . This explanation uses both representations.
.
.
.
There are two components in each of the three vectors. For example, in vector u, the first component is 11 and the second is 12. When multiplying a vector with a constant, multiply each component by the constant. For example,
.
So is the case when the constant is negative:
.
When adding two vectors, add the corresponding components (this phrase comes from Wolfram Mathworld) of each vector. In other words, add the number on the same row to each other. For example, when adding 3u to (-2)v,
.
Apply the two rules for the four vector operations.
<h3>1.</h3>Rewrite this vector as a linear combination of two unit vectors. The first component 69 will be the coefficient in front of the first unit vector, i. The second component 19 will be the coefficient in front of the second unit vector, j.
.
.
.
.