Answer:
Step-by-step explanation:
height(h) mid value frequency
in cm x f xf
120<t≤124 122 7 854
124<t≤128 126 8 1008
128<t≤132 130 13 1690
132<t≤136 134 9 1206
136<t≤140 138 3 414
total 40 5172
mean height=5172÷40=129.30
mean height=129.30 cm
b.
it is an estimate i have taken only mid value,for example in the interval all the 7 students may be of length greater than 122 and viceverse.
Similarly for other intervals.
I need a answer ASAP let me know when you guys get it please
Scientific notation is als<span>o </span>called power-of-10 notation, is a method of writing extremely large and small numbers.
when a number written in scientific notation includes a positive exponent, the magnitude of the number is <span>greater than one</span>
A possible answer can be n = 1/10 + rt/-10.
I brought the - 4n over to the other side and the +1 to the other side, giving me -10n = -1 + rt. I divided it all by - 10, which gave me n=-1/-10 + rt/-10. Since two negatives cancel each other out and becomes a positive, -1/-10 becomes 1/10.