Answer:
The number of women teachers attending the lecture is 1.
Step-by-step explanation:
Denote the variables as follows:
M = men
W = women
T = teacher
The data provided is:
n (M) = 23
n (W) = 29
n (T) = 4
n (M ∪ T) = 24
Compute the number of men teachers as follows:
[tex]n(M\cap T)=n(M)+n(T)-n(M\cup T)[/tex]
[tex]=23+4-24\\=3[/tex]
Compute the number of women teachers as follows:
[tex]n(T)=n(M\cap T)+n(W\cap T)[/tex]
[tex]4=3+n(W\cap T)[/tex]
[tex]n(W\cap T)=1[/tex]
Thus, the number of women teachers attending the lecture is 1.
