Use the Following Binomial Distribution for the Next Questions

Short Answer

Use the following binomial distribution for the next questions. A scientist
knows that piñon jays that breed in captivity and are released have the ability to find 70% of caches, or hidden sources of food, in the wild. Assume the scientist releases 15 piñon jays.
-Find the standard deviation from the binomial distribution for the cache-finding ability of these piñon jays.