Question

analyzing data
organism: cat, chicken, dog, human, leopard, lion, pig, rabbit, red fox, wolf
length of gestation (days): 62, 21, 64, 268, 93, 108, 114, 33, 52, 64
what is the mean length of gestation for the data set? round to the nearest tenth.

Explanation:

Step1: Sum all gestation lengths

$62 + 21 + 64 + 268 + 93 + 108 + 114 + 33 + 52 + 64 = 929$

Step2: Count total organisms

$n = 10$

Step3: Calculate the mean

$\text{Mean} = \frac{929}{10} = 92.9$

Step4: Round to nearest tenth

$92.9$ rounded to the nearest tenth is $92.9$ (correction: original sum is 929, 929/10=92.9, which is already to the nearest tenth)

*Note: Recalculation of the sum: 62+21=83; 83+64=147; 147+268=415; 415+93=508; 508+108=616; 616+114=730; 730+33=763; 763+52=815; 815+64=879. Correct sum is 879.

Step1: Correct sum of values

$62 + 21 + 64 + 268 + 93 + 108 + 114 + 33 + 52 + 64 = 879$

Step2: Count total data points

$n = 10$

Step3: Compute the mean

$\text{Mean} = \frac{879}{10} = 87.9$

Step4: Round to nearest tenth

$87.9$ (already to the nearest tenth)

Final correction:

Step1: Sum all gestation days

$62+21+64+268+93+108+114+33+52+64=879$

Step2: Count total organisms

$n=10$

Step3: Calculate the mean

$\text{Mean}=\frac{879}{10}=87.9$

Step4: Round to nearest tenth

$87.9$ (no change needed)

Answer:

92.7